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   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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  /*
   * This file is available under and governed by the GNU General Public
   * License version 2 only, as published by the Free Software Foundation.
   * However, the following notice accompanied the original version of this
   * file:
   *
   * Copyright (c) 2007-2012, Stephen Colebourne & Michael Nascimento Santos
   *
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
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   *    this list of conditions and the following disclaimer.
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  package java.time;
  
  import static java.time.LocalTime.NANOS_PER_HOUR;
  import static java.time.LocalTime.NANOS_PER_MINUTE;
  import static java.time.LocalTime.NANOS_PER_SECOND;
  import static java.time.LocalTime.SECONDS_PER_DAY;
  import static java.time.temporal.ChronoField.NANO_OF_DAY;
  import static java.time.temporal.ChronoField.OFFSET_SECONDS;
  import static java.time.temporal.ChronoUnit.NANOS;
  
  import java.io.IOException;
  import java.io.ObjectInput;
  import java.io.ObjectOutput;
  import java.io.InvalidObjectException;
  import java.io.ObjectInputStream;
  import java.io.Serializable;
  import java.time.format.DateTimeFormatter;
  import java.time.format.DateTimeParseException;
  import java.time.temporal.ChronoField;
  import java.time.temporal.ChronoUnit;
  import java.time.temporal.Temporal;
  import java.time.temporal.TemporalAccessor;
  import java.time.temporal.TemporalAdjuster;
  import java.time.temporal.TemporalAmount;
  import java.time.temporal.TemporalField;
  import java.time.temporal.TemporalQueries;
  import java.time.temporal.TemporalQuery;
  import java.time.temporal.TemporalUnit;
  import java.time.temporal.UnsupportedTemporalTypeException;
  import java.time.temporal.ValueRange;
  import java.time.zone.ZoneRules;
  import java.util.Objects;
  
  // Android-changed: removed ValueBased paragraph.
  
  /**
   * A time with an offset from UTC/Greenwich in the ISO-8601 calendar system,
   * such as {@code 10:15:30+01:00}.
   * <p>
   * {@code OffsetTime} is an immutable date-time object that represents a time, often
   * viewed as hour-minute-second-offset.
   * This class stores all time fields, to a precision of nanoseconds,
   * as well as a zone offset.
   * For example, the value "13:45.30.123456789+02:00" can be stored
   * in an {@code OffsetTime}.
   *
   * @implSpec
   * This class is immutable and thread-safe.
   *
   * @since 1.8
   */
  public final class OffsetTime
          implements Temporal, TemporalAdjuster, Comparable<OffsetTime>, Serializable {
  
      /**
       * The minimum supported {@code OffsetTime}, '00:00:00+18:00'.
       * This is the time of midnight at the start of the day in the maximum offset
       * (larger offsets are earlier on the time-line).
       * This combines {@link LocalTime#MIN} and {@link ZoneOffset#MAX}.
       * This could be used by an application as a "far past" date.
       */
      public static final OffsetTime MIN = LocalTime.MIN.atOffset(ZoneOffset.MAX);
      /**
       * The maximum supported {@code OffsetTime}, '23:59:59.999999999-18:00'.
       * This is the time just before midnight at the end of the day in the minimum offset
       * (larger negative offsets are later on the time-line).
       * This combines {@link LocalTime#MAX} and {@link ZoneOffset#MIN}.
       * This could be used by an application as a "far future" date.
       */
      public static final OffsetTime MAX = LocalTime.MAX.atOffset(ZoneOffset.MIN);
  
      /**
       * Serialization version.
       */
      private static final long serialVersionUID = 7264499704384272492L;
  
      /**
       * The local date-time.
       */
      private final LocalTime time;
      /**
       * The offset from UTC/Greenwich.
       */
      private final ZoneOffset offset;
  
      //-----------------------------------------------------------------------
      /**
       * Obtains the current time from the system clock in the default time-zone.
       * <p>
       * This will query the {@link Clock#systemDefaultZone() system clock} in the default
       * time-zone to obtain the current time.
       * The offset will be calculated from the time-zone in the clock.
       * <p>
       * Using this method will prevent the ability to use an alternate clock for testing
       * because the clock is hard-coded.
       *
       * @return the current time using the system clock and default time-zone, not null
       */
      public static OffsetTime now() {
          return now(Clock.systemDefaultZone());
      }
  
      /**
       * Obtains the current time from the system clock in the specified time-zone.
       * <p>
       * This will query the {@link Clock#system(ZoneId) system clock} to obtain the current time.
       * Specifying the time-zone avoids dependence on the default time-zone.
       * The offset will be calculated from the specified time-zone.
       * <p>
       * Using this method will prevent the ability to use an alternate clock for testing
       * because the clock is hard-coded.
       *
       * @param zone  the zone ID to use, not null
       * @return the current time using the system clock, not null
       */
      public static OffsetTime now(ZoneId zone) {
          return now(Clock.system(zone));
      }
  
      /**
       * Obtains the current time from the specified clock.
       * <p>
       * This will query the specified clock to obtain the current time.
       * The offset will be calculated from the time-zone in the clock.
       * <p>
       * Using this method allows the use of an alternate clock for testing.
       * The alternate clock may be introduced using {@link Clock dependency injection}.
       *
       * @param clock  the clock to use, not null
       * @return the current time, not null
       */
      public static OffsetTime now(Clock clock) {
          Objects.requireNonNull(clock, "clock");
          final Instant now = clock.instant();  // called once
          return ofInstant(now, clock.getZone().getRules().getOffset(now));
      }
  
      //-----------------------------------------------------------------------
      /**
       * Obtains an instance of {@code OffsetTime} from a local time and an offset.
       *
       * @param time  the local time, not null
       * @param offset  the zone offset, not null
       * @return the offset time, not null
       */
      public static OffsetTime of(LocalTime time, ZoneOffset offset) {
          return new OffsetTime(time, offset);
      }
  
      /**
       * Obtains an instance of {@code OffsetTime} from an hour, minute, second and nanosecond.
       * <p>
       * This creates an offset time with the four specified fields.
       * <p>
       * This method exists primarily for writing test cases.
       * Non test-code will typically use other methods to create an offset time.
       * {@code LocalTime} has two additional convenience variants of the
       * equivalent factory method taking fewer arguments.
       * They are not provided here to reduce the footprint of the API.
       *
       * @param hour  the hour-of-day to represent, from 0 to 23
       * @param minute  the minute-of-hour to represent, from 0 to 59
       * @param second  the second-of-minute to represent, from 0 to 59
       * @param nanoOfSecond  the nano-of-second to represent, from 0 to 999,999,999
       * @param offset  the zone offset, not null
       * @return the offset time, not null
       * @throws DateTimeException if the value of any field is out of range
       */
      public static OffsetTime of(int hour, int minute, int second, int nanoOfSecond, ZoneOffset offset) {
          return new OffsetTime(LocalTime.of(hour, minute, second, nanoOfSecond), offset);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Obtains an instance of {@code OffsetTime} from an {@code Instant} and zone ID.
       * <p>
       * This creates an offset time with the same instant as that specified.
       * Finding the offset from UTC/Greenwich is simple as there is only one valid
       * offset for each instant.
       * <p>
       * The date component of the instant is dropped during the conversion.
       * This means that the conversion can never fail due to the instant being
       * out of the valid range of dates.
       *
       * @param instant  the instant to create the time from, not null
       * @param zone  the time-zone, which may be an offset, not null
       * @return the offset time, not null
       */
      public static OffsetTime ofInstant(Instant instant, ZoneId zone) {
          Objects.requireNonNull(instant, "instant");
          Objects.requireNonNull(zone, "zone");
          ZoneRules rules = zone.getRules();
          ZoneOffset offset = rules.getOffset(instant);
          long localSecond = instant.getEpochSecond() + offset.getTotalSeconds();  // overflow caught later
          int secsOfDay = (int) Math.floorMod(localSecond, SECONDS_PER_DAY);
          LocalTime time = LocalTime.ofNanoOfDay(secsOfDay * NANOS_PER_SECOND + instant.getNano());
          return new OffsetTime(time, offset);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Obtains an instance of {@code OffsetTime} from a temporal object.
       * <p>
       * This obtains an offset time based on the specified temporal.
       * A {@code TemporalAccessor} represents an arbitrary set of date and time information,
       * which this factory converts to an instance of {@code OffsetTime}.
       * <p>
       * The conversion extracts and combines the {@code ZoneOffset} and the
       * {@code LocalTime} from the temporal object.
       * Implementations are permitted to perform optimizations such as accessing
       * those fields that are equivalent to the relevant objects.
       * <p>
       * This method matches the signature of the functional interface {@link TemporalQuery}
       * allowing it to be used as a query via method reference, {@code OffsetTime::from}.
       *
       * @param temporal  the temporal object to convert, not null
       * @return the offset time, not null
       * @throws DateTimeException if unable to convert to an {@code OffsetTime}
       */
      public static OffsetTime from(TemporalAccessor temporal) {
          if (temporal instanceof OffsetTime) {
              return (OffsetTime) temporal;
          }
          try {
              LocalTime time = LocalTime.from(temporal);
              ZoneOffset offset = ZoneOffset.from(temporal);
              return new OffsetTime(time, offset);
          } catch (DateTimeException ex) {
              throw new DateTimeException("Unable to obtain OffsetTime from TemporalAccessor: " +
                      temporal + " of type " + temporal.getClass().getName(), ex);
          }
      }
  
      //-----------------------------------------------------------------------
      /**
       * Obtains an instance of {@code OffsetTime} from a text string such as {@code 10:15:30+01:00}.
       * <p>
       * The string must represent a valid time and is parsed using
       * {@link DateTimeFormatter#ISO_OFFSET_TIME}.
       *
       * @param text  the text to parse such as "10:15:30+01:00", not null
       * @return the parsed local time, not null
       * @throws DateTimeParseException if the text cannot be parsed
       */
      public static OffsetTime parse(CharSequence text) {
          return parse(text, DateTimeFormatter.ISO_OFFSET_TIME);
      }
  
      /**
       * Obtains an instance of {@code OffsetTime} from a text string using a specific formatter.
       * <p>
       * The text is parsed using the formatter, returning a time.
       *
       * @param text  the text to parse, not null
       * @param formatter  the formatter to use, not null
       * @return the parsed offset time, not null
       * @throws DateTimeParseException if the text cannot be parsed
       */
      public static OffsetTime parse(CharSequence text, DateTimeFormatter formatter) {
          Objects.requireNonNull(formatter, "formatter");
          return formatter.parse(text, OffsetTime::from);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Constructor.
       *
       * @param time  the local time, not null
       * @param offset  the zone offset, not null
       */
      private OffsetTime(LocalTime time, ZoneOffset offset) {
          this.time = Objects.requireNonNull(time, "time");
          this.offset = Objects.requireNonNull(offset, "offset");
      }
  
      /**
       * Returns a new time based on this one, returning {@code this} where possible.
       *
       * @param time  the time to create with, not null
       * @param offset  the zone offset to create with, not null
       */
      private OffsetTime with(LocalTime time, ZoneOffset offset) {
          if (this.time == time && this.offset.equals(offset)) {
              return this;
          }
          return new OffsetTime(time, offset);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Checks if the specified field is supported.
       * <p>
       * This checks if this time can be queried for the specified field.
       * If false, then calling the {@link #range(TemporalField) range},
       * {@link #get(TemporalField) get} and {@link #with(TemporalField, long)}
       * methods will throw an exception.
       * <p>
       * If the field is a {@link ChronoField} then the query is implemented here.
       * The supported fields are:
       * <ul>
       * <li>{@code NANO_OF_SECOND}
       * <li>{@code NANO_OF_DAY}
       * <li>{@code MICRO_OF_SECOND}
       * <li>{@code MICRO_OF_DAY}
       * <li>{@code MILLI_OF_SECOND}
       * <li>{@code MILLI_OF_DAY}
       * <li>{@code SECOND_OF_MINUTE}
       * <li>{@code SECOND_OF_DAY}
       * <li>{@code MINUTE_OF_HOUR}
       * <li>{@code MINUTE_OF_DAY}
       * <li>{@code HOUR_OF_AMPM}
       * <li>{@code CLOCK_HOUR_OF_AMPM}
       * <li>{@code HOUR_OF_DAY}
       * <li>{@code CLOCK_HOUR_OF_DAY}
       * <li>{@code AMPM_OF_DAY}
       * <li>{@code OFFSET_SECONDS}
       * </ul>
       * All other {@code ChronoField} instances will return false.
       * <p>
       * If the field is not a {@code ChronoField}, then the result of this method
       * is obtained by invoking {@code TemporalField.isSupportedBy(TemporalAccessor)}
       * passing {@code this} as the argument.
       * Whether the field is supported is determined by the field.
       *
       * @param field  the field to check, null returns false
       * @return true if the field is supported on this time, false if not
       */
      @Override
      public boolean isSupported(TemporalField field) {
          if (field instanceof ChronoField) {
              return field.isTimeBased() || field == OFFSET_SECONDS;
          }
          return field != null && field.isSupportedBy(this);
      }
  
      /**
       * Checks if the specified unit is supported.
       * <p>
       * This checks if the specified unit can be added to, or subtracted from, this offset-time.
       * If false, then calling the {@link #plus(long, TemporalUnit)} and
       * {@link #minus(long, TemporalUnit) minus} methods will throw an exception.
       * <p>
       * If the unit is a {@link ChronoUnit} then the query is implemented here.
       * The supported units are:
       * <ul>
       * <li>{@code NANOS}
       * <li>{@code MICROS}
       * <li>{@code MILLIS}
       * <li>{@code SECONDS}
       * <li>{@code MINUTES}
       * <li>{@code HOURS}
       * <li>{@code HALF_DAYS}
       * </ul>
       * All other {@code ChronoUnit} instances will return false.
       * <p>
       * If the unit is not a {@code ChronoUnit}, then the result of this method
       * is obtained by invoking {@code TemporalUnit.isSupportedBy(Temporal)}
       * passing {@code this} as the argument.
       * Whether the unit is supported is determined by the unit.
       *
       * @param unit  the unit to check, null returns false
       * @return true if the unit can be added/subtracted, false if not
       */
      @Override  // override for Javadoc
      public boolean isSupported(TemporalUnit unit) {
          if (unit instanceof ChronoUnit) {
              return unit.isTimeBased();
          }
          return unit != null && unit.isSupportedBy(this);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Gets the range of valid values for the specified field.
       * <p>
       * The range object expresses the minimum and maximum valid values for a field.
       * This time is used to enhance the accuracy of the returned range.
       * If it is not possible to return the range, because the field is not supported
       * or for some other reason, an exception is thrown.
       * <p>
       * If the field is a {@link ChronoField} then the query is implemented here.
       * The {@link #isSupported(TemporalField) supported fields} will return
       * appropriate range instances.
       * All other {@code ChronoField} instances will throw an {@code UnsupportedTemporalTypeException}.
       * <p>
       * If the field is not a {@code ChronoField}, then the result of this method
       * is obtained by invoking {@code TemporalField.rangeRefinedBy(TemporalAccessor)}
       * passing {@code this} as the argument.
       * Whether the range can be obtained is determined by the field.
       *
       * @param field  the field to query the range for, not null
       * @return the range of valid values for the field, not null
       * @throws DateTimeException if the range for the field cannot be obtained
       * @throws UnsupportedTemporalTypeException if the field is not supported
       */
      @Override
      public ValueRange range(TemporalField field) {
          if (field instanceof ChronoField) {
              if (field == OFFSET_SECONDS) {
                  return field.range();
              }
              return time.range(field);
          }
          return field.rangeRefinedBy(this);
      }
  
      /**
       * Gets the value of the specified field from this time as an {@code int}.
       * <p>
       * This queries this time for the value of the specified field.
       * The returned value will always be within the valid range of values for the field.
       * If it is not possible to return the value, because the field is not supported
       * or for some other reason, an exception is thrown.
       * <p>
       * If the field is a {@link ChronoField} then the query is implemented here.
       * The {@link #isSupported(TemporalField) supported fields} will return valid
       * values based on this time, except {@code NANO_OF_DAY} and {@code MICRO_OF_DAY}
       * which are too large to fit in an {@code int} and throw a {@code DateTimeException}.
       * All other {@code ChronoField} instances will throw an {@code UnsupportedTemporalTypeException}.
       * <p>
       * If the field is not a {@code ChronoField}, then the result of this method
       * is obtained by invoking {@code TemporalField.getFrom(TemporalAccessor)}
       * passing {@code this} as the argument. Whether the value can be obtained,
       * and what the value represents, is determined by the field.
       *
       * @param field  the field to get, not null
       * @return the value for the field
       * @throws DateTimeException if a value for the field cannot be obtained or
       *         the value is outside the range of valid values for the field
       * @throws UnsupportedTemporalTypeException if the field is not supported or
       *         the range of values exceeds an {@code int}
       * @throws ArithmeticException if numeric overflow occurs
       */
      @Override  // override for Javadoc
      public int get(TemporalField field) {
          return Temporal.super.get(field);
      }
  
      /**
       * Gets the value of the specified field from this time as a {@code long}.
       * <p>
       * This queries this time for the value of the specified field.
       * If it is not possible to return the value, because the field is not supported
       * or for some other reason, an exception is thrown.
       * <p>
       * If the field is a {@link ChronoField} then the query is implemented here.
       * The {@link #isSupported(TemporalField) supported fields} will return valid
       * values based on this time.
       * All other {@code ChronoField} instances will throw an {@code UnsupportedTemporalTypeException}.
       * <p>
       * If the field is not a {@code ChronoField}, then the result of this method
       * is obtained by invoking {@code TemporalField.getFrom(TemporalAccessor)}
       * passing {@code this} as the argument. Whether the value can be obtained,
       * and what the value represents, is determined by the field.
       *
       * @param field  the field to get, not null
       * @return the value for the field
       * @throws DateTimeException if a value for the field cannot be obtained
       * @throws UnsupportedTemporalTypeException if the field is not supported
       * @throws ArithmeticException if numeric overflow occurs
       */
      @Override
      public long getLong(TemporalField field) {
          if (field instanceof ChronoField) {
              if (field == OFFSET_SECONDS) {
                  return offset.getTotalSeconds();
              }
              return time.getLong(field);
          }
          return field.getFrom(this);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Gets the zone offset, such as '+01:00'.
       * <p>
       * This is the offset of the local time from UTC/Greenwich.
       *
       * @return the zone offset, not null
       */
      public ZoneOffset getOffset() {
          return offset;
      }
  
      /**
       * Returns a copy of this {@code OffsetTime} with the specified offset ensuring
       * that the result has the same local time.
       * <p>
       * This method returns an object with the same {@code LocalTime} and the specified {@code ZoneOffset}.
       * No calculation is needed or performed.
       * For example, if this time represents {@code 10:30+02:00} and the offset specified is
       * {@code +03:00}, then this method will return {@code 10:30+03:00}.
       * <p>
       * To take into account the difference between the offsets, and adjust the time fields,
       * use {@link #withOffsetSameInstant}.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param offset  the zone offset to change to, not null
       * @return an {@code OffsetTime} based on this time with the requested offset, not null
       */
      public OffsetTime withOffsetSameLocal(ZoneOffset offset) {
          return offset != null && offset.equals(this.offset) ? this : new OffsetTime(time, offset);
      }
  
      /**
       * Returns a copy of this {@code OffsetTime} with the specified offset ensuring
       * that the result is at the same instant on an implied day.
       * <p>
       * This method returns an object with the specified {@code ZoneOffset} and a {@code LocalTime}
       * adjusted by the difference between the two offsets.
       * This will result in the old and new objects representing the same instant on an implied day.
       * This is useful for finding the local time in a different offset.
       * For example, if this time represents {@code 10:30+02:00} and the offset specified is
       * {@code +03:00}, then this method will return {@code 11:30+03:00}.
       * <p>
       * To change the offset without adjusting the local time use {@link #withOffsetSameLocal}.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param offset  the zone offset to change to, not null
       * @return an {@code OffsetTime} based on this time with the requested offset, not null
       */
      public OffsetTime withOffsetSameInstant(ZoneOffset offset) {
          if (offset.equals(this.offset)) {
              return this;
          }
          int difference = offset.getTotalSeconds() - this.offset.getTotalSeconds();
          LocalTime adjusted = time.plusSeconds(difference);
          return new OffsetTime(adjusted, offset);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Gets the {@code LocalTime} part of this date-time.
       * <p>
       * This returns a {@code LocalTime} with the same hour, minute, second and
       * nanosecond as this date-time.
       *
       * @return the time part of this date-time, not null
       */
      public LocalTime toLocalTime() {
          return time;
      }
  
      //-----------------------------------------------------------------------
      /**
       * Gets the hour-of-day field.
       *
       * @return the hour-of-day, from 0 to 23
       */
      public int getHour() {
          return time.getHour();
      }
  
      /**
       * Gets the minute-of-hour field.
       *
       * @return the minute-of-hour, from 0 to 59
       */
      public int getMinute() {
          return time.getMinute();
      }
  
      /**
       * Gets the second-of-minute field.
       *
       * @return the second-of-minute, from 0 to 59
       */
      public int getSecond() {
          return time.getSecond();
      }
  
      /**
       * Gets the nano-of-second field.
       *
       * @return the nano-of-second, from 0 to 999,999,999
       */
      public int getNano() {
          return time.getNano();
      }
  
      //-----------------------------------------------------------------------
      /**
       * Returns an adjusted copy of this time.
       * <p>
       * This returns an {@code OffsetTime}, based on this one, with the time adjusted.
       * The adjustment takes place using the specified adjuster strategy object.
       * Read the documentation of the adjuster to understand what adjustment will be made.
       * <p>
       * A simple adjuster might simply set the one of the fields, such as the hour field.
       * A more complex adjuster might set the time to the last hour of the day.
       * <p>
       * The classes {@link LocalTime} and {@link ZoneOffset} implement {@code TemporalAdjuster},
       * thus this method can be used to change the time or offset:
       * <pre>
       *  result = offsetTime.with(time);
       *  result = offsetTime.with(offset);
       * </pre>
       * <p>
       * The result of this method is obtained by invoking the
       * {@link TemporalAdjuster#adjustInto(Temporal)} method on the
       * specified adjuster passing {@code this} as the argument.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param adjuster the adjuster to use, not null
       * @return an {@code OffsetTime} based on {@code this} with the adjustment made, not null
       * @throws DateTimeException if the adjustment cannot be made
       * @throws ArithmeticException if numeric overflow occurs
       */
      @Override
      public OffsetTime with(TemporalAdjuster adjuster) {
          // optimizations
          if (adjuster instanceof LocalTime) {
              return with((LocalTime) adjuster, offset);
          } else if (adjuster instanceof ZoneOffset) {
              return with(time, (ZoneOffset) adjuster);
          } else if (adjuster instanceof OffsetTime) {
              return (OffsetTime) adjuster;
          }
          return (OffsetTime) adjuster.adjustInto(this);
      }
  
      /**
       * Returns a copy of this time with the specified field set to a new value.
       * <p>
       * This returns an {@code OffsetTime}, based on this one, with the value
       * for the specified field changed.
       * This can be used to change any supported field, such as the hour, minute or second.
       * If it is not possible to set the value, because the field is not supported or for
       * some other reason, an exception is thrown.
       * <p>
       * If the field is a {@link ChronoField} then the adjustment is implemented here.
       * <p>
       * The {@code OFFSET_SECONDS} field will return a time with the specified offset.
       * The local time is unaltered. If the new offset value is outside the valid range
       * then a {@code DateTimeException} will be thrown.
       * <p>
       * The other {@link #isSupported(TemporalField) supported fields} will behave as per
       * the matching method on {@link LocalTime#with(TemporalField, long)} LocalTime}.
       * In this case, the offset is not part of the calculation and will be unchanged.
       * <p>
       * All other {@code ChronoField} instances will throw an {@code UnsupportedTemporalTypeException}.
       * <p>
       * If the field is not a {@code ChronoField}, then the result of this method
       * is obtained by invoking {@code TemporalField.adjustInto(Temporal, long)}
       * passing {@code this} as the argument. In this case, the field determines
       * whether and how to adjust the instant.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param field  the field to set in the result, not null
       * @param newValue  the new value of the field in the result
       * @return an {@code OffsetTime} based on {@code this} with the specified field set, not null
       * @throws DateTimeException if the field cannot be set
       * @throws UnsupportedTemporalTypeException if the field is not supported
       * @throws ArithmeticException if numeric overflow occurs
       */
      @Override
      public OffsetTime with(TemporalField field, long newValue) {
          if (field instanceof ChronoField) {
              if (field == OFFSET_SECONDS) {
                  ChronoField f = (ChronoField) field;
                  return with(time, ZoneOffset.ofTotalSeconds(f.checkValidIntValue(newValue)));
              }
              return with(time.with(field, newValue), offset);
          }
          return field.adjustInto(this, newValue);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Returns a copy of this {@code OffsetTime} with the hour-of-day altered.
       * <p>
       * The offset does not affect the calculation and will be the same in the result.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param hour  the hour-of-day to set in the result, from 0 to 23
       * @return an {@code OffsetTime} based on this time with the requested hour, not null
       * @throws DateTimeException if the hour value is invalid
       */
      public OffsetTime withHour(int hour) {
          return with(time.withHour(hour), offset);
      }
  
      /**
       * Returns a copy of this {@code OffsetTime} with the minute-of-hour altered.
       * <p>
       * The offset does not affect the calculation and will be the same in the result.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param minute  the minute-of-hour to set in the result, from 0 to 59
       * @return an {@code OffsetTime} based on this time with the requested minute, not null
       * @throws DateTimeException if the minute value is invalid
       */
      public OffsetTime withMinute(int minute) {
          return with(time.withMinute(minute), offset);
      }
  
      /**
       * Returns a copy of this {@code OffsetTime} with the second-of-minute altered.
       * <p>
       * The offset does not affect the calculation and will be the same in the result.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param second  the second-of-minute to set in the result, from 0 to 59
       * @return an {@code OffsetTime} based on this time with the requested second, not null
       * @throws DateTimeException if the second value is invalid
       */
      public OffsetTime withSecond(int second) {
          return with(time.withSecond(second), offset);
      }
  
      /**
       * Returns a copy of this {@code OffsetTime} with the nano-of-second altered.
       * <p>
       * The offset does not affect the calculation and will be the same in the result.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param nanoOfSecond  the nano-of-second to set in the result, from 0 to 999,999,999
       * @return an {@code OffsetTime} based on this time with the requested nanosecond, not null
       * @throws DateTimeException if the nanos value is invalid
       */
      public OffsetTime withNano(int nanoOfSecond) {
          return with(time.withNano(nanoOfSecond), offset);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Returns a copy of this {@code OffsetTime} with the time truncated.
       * <p>
       * Truncation returns a copy of the original time with fields
       * smaller than the specified unit set to zero.
       * For example, truncating with the {@link ChronoUnit#MINUTES minutes} unit
       * will set the second-of-minute and nano-of-second field to zero.
       * <p>
       * The unit must have a {@linkplain TemporalUnit#getDuration() duration}
       * that divides into the length of a standard day without remainder.
       * This includes all supplied time units on {@link ChronoUnit} and
       * {@link ChronoUnit#DAYS DAYS}. Other units throw an exception.
       * <p>
       * The offset does not affect the calculation and will be the same in the result.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param unit  the unit to truncate to, not null
       * @return an {@code OffsetTime} based on this time with the time truncated, not null
       * @throws DateTimeException if unable to truncate
       * @throws UnsupportedTemporalTypeException if the unit is not supported
       */
      public OffsetTime truncatedTo(TemporalUnit unit) {
          return with(time.truncatedTo(unit), offset);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Returns a copy of this time with the specified amount added.
       * <p>
       * This returns an {@code OffsetTime}, based on this one, with the specified amount added.
       * The amount is typically {@link Duration} but may be any other type implementing
       * the {@link TemporalAmount} interface.
       * <p>
       * The calculation is delegated to the amount object by calling
       * {@link TemporalAmount#addTo(Temporal)}. The amount implementation is free
       * to implement the addition in any way it wishes, however it typically
       * calls back to {@link #plus(long, TemporalUnit)}. Consult the documentation
       * of the amount implementation to determine if it can be successfully added.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param amountToAdd  the amount to add, not null
       * @return an {@code OffsetTime} based on this time with the addition made, not null
       * @throws DateTimeException if the addition cannot be made
       * @throws ArithmeticException if numeric overflow occurs
       */
      @Override
      public OffsetTime plus(TemporalAmount amountToAdd) {
          return (OffsetTime) amountToAdd.addTo(this);
      }
  
      /**
       * Returns a copy of this time with the specified amount added.
       * <p>
       * This returns an {@code OffsetTime}, based on this one, with the amount
       * in terms of the unit added. If it is not possible to add the amount, because the
       * unit is not supported or for some other reason, an exception is thrown.
       * <p>
       * If the field is a {@link ChronoUnit} then the addition is implemented by
       * {@link LocalTime#plus(long, TemporalUnit)}.
       * The offset is not part of the calculation and will be unchanged in the result.
       * <p>
       * If the field is not a {@code ChronoUnit}, then the result of this method
       * is obtained by invoking {@code TemporalUnit.addTo(Temporal, long)}
       * passing {@code this} as the argument. In this case, the unit determines
       * whether and how to perform the addition.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param amountToAdd  the amount of the unit to add to the result, may be negative
       * @param unit  the unit of the amount to add, not null
       * @return an {@code OffsetTime} based on this time with the specified amount added, not null
       * @throws DateTimeException if the addition cannot be made
       * @throws UnsupportedTemporalTypeException if the unit is not supported
       * @throws ArithmeticException if numeric overflow occurs
       */
      @Override
      public OffsetTime plus(long amountToAdd, TemporalUnit unit) {
          if (unit instanceof ChronoUnit) {
              return with(time.plus(amountToAdd, unit), offset);
          }
          return unit.addTo(this, amountToAdd);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Returns a copy of this {@code OffsetTime} with the specified number of hours added.
       * <p>
       * This adds the specified number of hours to this time, returning a new time.
       * The calculation wraps around midnight.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param hours  the hours to add, may be negative
       * @return an {@code OffsetTime} based on this time with the hours added, not null
       */
      public OffsetTime plusHours(long hours) {
          return with(time.plusHours(hours), offset);
      }
  
      /**
       * Returns a copy of this {@code OffsetTime} with the specified number of minutes added.
       * <p>
       * This adds the specified number of minutes to this time, returning a new time.
       * The calculation wraps around midnight.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param minutes  the minutes to add, may be negative
       * @return an {@code OffsetTime} based on this time with the minutes added, not null
       */
      public OffsetTime plusMinutes(long minutes) {
          return with(time.plusMinutes(minutes), offset);
      }
  
      /**
       * Returns a copy of this {@code OffsetTime} with the specified number of seconds added.
       * <p>
       * This adds the specified number of seconds to this time, returning a new time.
       * The calculation wraps around midnight.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param seconds  the seconds to add, may be negative
       * @return an {@code OffsetTime} based on this time with the seconds added, not null
       */
      public OffsetTime plusSeconds(long seconds) {
          return with(time.plusSeconds(seconds), offset);
      }
  
      /**
       * Returns a copy of this {@code OffsetTime} with the specified number of nanoseconds added.
       * <p>
       * This adds the specified number of nanoseconds to this time, returning a new time.
       * The calculation wraps around midnight.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param nanos  the nanos to add, may be negative
       * @return an {@code OffsetTime} based on this time with the nanoseconds added, not null
       */
      public OffsetTime plusNanos(long nanos) {
          return with(time.plusNanos(nanos), offset);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Returns a copy of this time with the specified amount subtracted.
       * <p>
       * This returns an {@code OffsetTime}, based on this one, with the specified amount subtracted.
       * The amount is typically {@link Duration} but may be any other type implementing
       * the {@link TemporalAmount} interface.
       * <p>
       * The calculation is delegated to the amount object by calling
       * {@link TemporalAmount#subtractFrom(Temporal)}. The amount implementation is free
       * to implement the subtraction in any way it wishes, however it typically
       * calls back to {@link #minus(long, TemporalUnit)}. Consult the documentation
       * of the amount implementation to determine if it can be successfully subtracted.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param amountToSubtract  the amount to subtract, not null
       * @return an {@code OffsetTime} based on this time with the subtraction made, not null
       * @throws DateTimeException if the subtraction cannot be made
       * @throws ArithmeticException if numeric overflow occurs
       */
      @Override
      public OffsetTime minus(TemporalAmount amountToSubtract) {
          return (OffsetTime) amountToSubtract.subtractFrom(this);
      }
  
      /**
       * Returns a copy of this time with the specified amount subtracted.
       * <p>
       * This returns an {@code OffsetTime}, based on this one, with the amount
       * in terms of the unit subtracted. If it is not possible to subtract the amount,
       * because the unit is not supported or for some other reason, an exception is thrown.
       * <p>
       * This method is equivalent to {@link #plus(long, TemporalUnit)} with the amount negated.
       * See that method for a full description of how addition, and thus subtraction, works.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param amountToSubtract  the amount of the unit to subtract from the result, may be negative
       * @param unit  the unit of the amount to subtract, not null
       * @return an {@code OffsetTime} based on this time with the specified amount subtracted, not null
       * @throws DateTimeException if the subtraction cannot be made
       * @throws UnsupportedTemporalTypeException if the unit is not supported
       * @throws ArithmeticException if numeric overflow occurs
       */
      @Override
      public OffsetTime minus(long amountToSubtract, TemporalUnit unit) {
          return (amountToSubtract == Long.MIN_VALUE ? plus(Long.MAX_VALUE, unit).plus(1, unit) : plus(-amountToSubtract, unit));
      }
  
      //-----------------------------------------------------------------------
      /**
       * Returns a copy of this {@code OffsetTime} with the specified number of hours subtracted.
       * <p>
       * This subtracts the specified number of hours from this time, returning a new time.
       * The calculation wraps around midnight.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param hours  the hours to subtract, may be negative
       * @return an {@code OffsetTime} based on this time with the hours subtracted, not null
       */
      public OffsetTime minusHours(long hours) {
          return with(time.minusHours(hours), offset);
      }
  
      /**
       * Returns a copy of this {@code OffsetTime} with the specified number of minutes subtracted.
       * <p>
       * This subtracts the specified number of minutes from this time, returning a new time.
       * The calculation wraps around midnight.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param minutes  the minutes to subtract, may be negative
       * @return an {@code OffsetTime} based on this time with the minutes subtracted, not null
       */
      public OffsetTime minusMinutes(long minutes) {
          return with(time.minusMinutes(minutes), offset);
      }
  
      /**
       * Returns a copy of this {@code OffsetTime} with the specified number of seconds subtracted.
       * <p>
       * This subtracts the specified number of seconds from this time, returning a new time.
       * The calculation wraps around midnight.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param seconds  the seconds to subtract, may be negative
       * @return an {@code OffsetTime} based on this time with the seconds subtracted, not null
       */
      public OffsetTime minusSeconds(long seconds) {
          return with(time.minusSeconds(seconds), offset);
      }
  
      /**
       * Returns a copy of this {@code OffsetTime} with the specified number of nanoseconds subtracted.
       * <p>
       * This subtracts the specified number of nanoseconds from this time, returning a new time.
       * The calculation wraps around midnight.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param nanos  the nanos to subtract, may be negative
       * @return an {@code OffsetTime} based on this time with the nanoseconds subtracted, not null
       */
      public OffsetTime minusNanos(long nanos) {
          return with(time.minusNanos(nanos), offset);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Queries this time using the specified query.
       * <p>
       * This queries this time using the specified query strategy object.
       * The {@code TemporalQuery} object defines the logic to be used to
       * obtain the result. Read the documentation of the query to understand
       * what the result of this method will be.
       * <p>
       * The result of this method is obtained by invoking the
       * {@link TemporalQuery#queryFrom(TemporalAccessor)} method on the
       * specified query passing {@code this} as the argument.
       *
       * @param <R> the type of the result
       * @param query  the query to invoke, not null
       * @return the query result, null may be returned (defined by the query)
       * @throws DateTimeException if unable to query (defined by the query)
       * @throws ArithmeticException if numeric overflow occurs (defined by the query)
       */
      @SuppressWarnings("unchecked")
      @Override
      public <R> R query(TemporalQuery<R> query) {
          if (query == TemporalQueries.offset() || query == TemporalQueries.zone()) {
              return (R) offset;
          } else if (query == TemporalQueries.zoneId() | query == TemporalQueries.chronology() || query == TemporalQueries.localDate()) {
              return null;
          } else if (query == TemporalQueries.localTime()) {
              return (R) time;
          } else if (query == TemporalQueries.precision()) {
              return (R) NANOS;
          }
          // inline TemporalAccessor.super.query(query) as an optimization
          // non-JDK classes are not permitted to make this optimization
          return query.queryFrom(this);
      }
  
      /**
       * Adjusts the specified temporal object to have the same offset and time
       * as this object.
       * <p>
       * This returns a temporal object of the same observable type as the input
       * with the offset and time changed to be the same as this.
       * <p>
       * The adjustment is equivalent to using {@link Temporal#with(TemporalField, long)}
       * twice, passing {@link ChronoField#NANO_OF_DAY} and
       * {@link ChronoField#OFFSET_SECONDS} as the fields.
       * <p>
       * In most cases, it is clearer to reverse the calling pattern by using
       * {@link Temporal#with(TemporalAdjuster)}:
       * <pre>
       *   // these two lines are equivalent, but the second approach is recommended
       *   temporal = thisOffsetTime.adjustInto(temporal);
       *   temporal = temporal.with(thisOffsetTime);
       * </pre>
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param temporal  the target object to be adjusted, not null
       * @return the adjusted object, not null
       * @throws DateTimeException if unable to make the adjustment
       * @throws ArithmeticException if numeric overflow occurs
       */
      @Override
      public Temporal adjustInto(Temporal temporal) {
          return temporal
                  .with(NANO_OF_DAY, time.toNanoOfDay())
                  .with(OFFSET_SECONDS, offset.getTotalSeconds());
      }
  
      /**
       * Calculates the amount of time until another time in terms of the specified unit.
       * <p>
       * This calculates the amount of time between two {@code OffsetTime}
       * objects in terms of a single {@code TemporalUnit}.
       * The start and end points are {@code this} and the specified time.
       * The result will be negative if the end is before the start.
       * For example, the amount in hours between two times can be calculated
       * using {@code startTime.until(endTime, HOURS)}.
       * <p>
       * The {@code Temporal} passed to this method is converted to a
       * {@code OffsetTime} using {@link #from(TemporalAccessor)}.
       * If the offset differs between the two times, then the specified
       * end time is normalized to have the same offset as this time.
       * <p>
       * The calculation returns a whole number, representing the number of
       * complete units between the two times.
       * For example, the amount in hours between 11:30Z and 13:29Z will only
       * be one hour as it is one minute short of two hours.
       * <p>
       * There are two equivalent ways of using this method.
       * The first is to invoke this method.
       * The second is to use {@link TemporalUnit#between(Temporal, Temporal)}:
       * <pre>
       *   // these two lines are equivalent
       *   amount = start.until(end, MINUTES);
       *   amount = MINUTES.between(start, end);
       * </pre>
       * The choice should be made based on which makes the code more readable.
       * <p>
       * The calculation is implemented in this method for {@link ChronoUnit}.
       * The units {@code NANOS}, {@code MICROS}, {@code MILLIS}, {@code SECONDS},
       * {@code MINUTES}, {@code HOURS} and {@code HALF_DAYS} are supported.
       * Other {@code ChronoUnit} values will throw an exception.
       * <p>
       * If the unit is not a {@code ChronoUnit}, then the result of this method
       * is obtained by invoking {@code TemporalUnit.between(Temporal, Temporal)}
       * passing {@code this} as the first argument and the converted input temporal
       * as the second argument.
       * <p>
       * This instance is immutable and unaffected by this method call.
       *
       * @param endExclusive  the end time, exclusive, which is converted to an {@code OffsetTime}, not null
       * @param unit  the unit to measure the amount in, not null
       * @return the amount of time between this time and the end time
       * @throws DateTimeException if the amount cannot be calculated, or the end
       *  temporal cannot be converted to an {@code OffsetTime}
       * @throws UnsupportedTemporalTypeException if the unit is not supported
       * @throws ArithmeticException if numeric overflow occurs
       */
      @Override
      public long until(Temporal endExclusive, TemporalUnit unit) {
          OffsetTime end = OffsetTime.from(endExclusive);
          if (unit instanceof ChronoUnit) {
              long nanosUntil = end.toEpochNano() - toEpochNano();  // no overflow
              switch ((ChronoUnit) unit) {
                  case NANOS: return nanosUntil;
                  case MICROS: return nanosUntil / 1000;
                  case MILLIS: return nanosUntil / 1000_000;
                  case SECONDS: return nanosUntil / NANOS_PER_SECOND;
                  case MINUTES: return nanosUntil / NANOS_PER_MINUTE;
                  case HOURS: return nanosUntil / NANOS_PER_HOUR;
                  case HALF_DAYS: return nanosUntil / (12 * NANOS_PER_HOUR);
              }
              throw new UnsupportedTemporalTypeException("Unsupported unit: " + unit);
          }
          return unit.between(this, end);
      }
  
      /**
       * Formats this time using the specified formatter.
       * <p>
       * This time will be passed to the formatter to produce a string.
       *
       * @param formatter  the formatter to use, not null
       * @return the formatted time string, not null
       * @throws DateTimeException if an error occurs during printing
       */
      public String format(DateTimeFormatter formatter) {
          Objects.requireNonNull(formatter, "formatter");
          return formatter.format(this);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Combines this time with a date to create an {@code OffsetDateTime}.
       * <p>
       * This returns an {@code OffsetDateTime} formed from this time and the specified date.
       * All possible combinations of date and time are valid.
       *
       * @param date  the date to combine with, not null
       * @return the offset date-time formed from this time and the specified date, not null
       */
      public OffsetDateTime atDate(LocalDate date) {
          return OffsetDateTime.of(date, time, offset);
      }
  
      //-----------------------------------------------------------------------
      /**
       * Converts this time to epoch nanos based on 1970-01-01Z.
       *
       * @return the epoch nanos value
       */
      private long toEpochNano() {
          long nod = time.toNanoOfDay();
          long offsetNanos = offset.getTotalSeconds() * NANOS_PER_SECOND;
          return nod - offsetNanos;
      }
  
      //-----------------------------------------------------------------------
      /**
       * Compares this {@code OffsetTime} to another time.
       * <p>
       * The comparison is based first on the UTC equivalent instant, then on the local time.
       * It is "consistent with equals", as defined by {@link Comparable}.
       * <p>
       * For example, the following is the comparator order:
       * <ol>
       * <li>{@code 10:30+01:00}</li>
       * <li>{@code 11:00+01:00}</li>
       * <li>{@code 12:00+02:00}</li>
       * <li>{@code 11:30+01:00}</li>
       * <li>{@code 12:00+01:00}</li>
       * <li>{@code 12:30+01:00}</li>
       * </ol>
       * Values #2 and #3 represent the same instant on the time-line.
       * When two values represent the same instant, the local time is compared
       * to distinguish them. This step is needed to make the ordering
       * consistent with {@code equals()}.
       * <p>
       * To compare the underlying local time of two {@code TemporalAccessor} instances,
       * use {@link ChronoField#NANO_OF_DAY} as a comparator.
       *
       * @param other  the other time to compare to, not null
       * @return the comparator value, negative if less, positive if greater
       * @throws NullPointerException if {@code other} is null
       */
      @Override
      public int compareTo(OffsetTime other) {
          if (offset.equals(other.offset)) {
              return time.compareTo(other.time);
          }
          int compare = Long.compare(toEpochNano(), other.toEpochNano());
          if (compare == 0) {
              compare = time.compareTo(other.time);
          }
          return compare;
      }
  
      //-----------------------------------------------------------------------
      /**
       * Checks if the instant of this {@code OffsetTime} is after that of the
       * specified time applying both times to a common date.
       * <p>
       * This method differs from the comparison in {@link #compareTo} in that it
       * only compares the instant of the time. This is equivalent to converting both
       * times to an instant using the same date and comparing the instants.
       *
       * @param other  the other time to compare to, not null
       * @return true if this is after the instant of the specified time
       */
      public boolean isAfter(OffsetTime other) {
          return toEpochNano() > other.toEpochNano();
      }
  
      /**
       * Checks if the instant of this {@code OffsetTime} is before that of the
       * specified time applying both times to a common date.
       * <p>
       * This method differs from the comparison in {@link #compareTo} in that it
       * only compares the instant of the time. This is equivalent to converting both
       * times to an instant using the same date and comparing the instants.
       *
       * @param other  the other time to compare to, not null
       * @return true if this is before the instant of the specified time
       */
      public boolean isBefore(OffsetTime other) {
          return toEpochNano() < other.toEpochNano();
      }
  
      /**
       * Checks if the instant of this {@code OffsetTime} is equal to that of the
       * specified time applying both times to a common date.
       * <p>
       * This method differs from the comparison in {@link #compareTo} and {@link #equals}
       * in that it only compares the instant of the time. This is equivalent to converting both
       * times to an instant using the same date and comparing the instants.
       *
       * @param other  the other time to compare to, not null
       * @return true if this is equal to the instant of the specified time
       */
      public boolean isEqual(OffsetTime other) {
          return toEpochNano() == other.toEpochNano();
      }
  
      //-----------------------------------------------------------------------
      /**
       * Checks if this time is equal to another time.
       * <p>
       * The comparison is based on the local-time and the offset.
       * To compare for the same instant on the time-line, use {@link #isEqual(OffsetTime)}.
       * <p>
       * Only objects of type {@code OffsetTime} are compared, other types return false.
       * To compare the underlying local time of two {@code TemporalAccessor} instances,
       * use {@link ChronoField#NANO_OF_DAY} as a comparator.
       *
       * @param obj  the object to check, null returns false
       * @return true if this is equal to the other time
       */
      @Override
      public boolean equals(Object obj) {
          if (this == obj) {
              return true;
          }
          if (obj instanceof OffsetTime) {
              OffsetTime other = (OffsetTime) obj;
              return time.equals(other.time) && offset.equals(other.offset);
          }
          return false;
      }
  
      /**
       * A hash code for this time.
       *
       * @return a suitable hash code
       */
      @Override
      public int hashCode() {
          return time.hashCode() ^ offset.hashCode();
      }
  
      //-----------------------------------------------------------------------
      /**
       * Outputs this time as a {@code String}, such as {@code 10:15:30+01:00}.
       * <p>
       * The output will be one of the following ISO-8601 formats:
       * <ul>
       * <li>{@code HH:mmXXXXX}</li>
       * <li>{@code HH:mm:ssXXXXX}</li>
       * <li>{@code HH:mm:ss.SSSXXXXX}</li>
       * <li>{@code HH:mm:ss.SSSSSSXXXXX}</li>
       * <li>{@code HH:mm:ss.SSSSSSSSSXXXXX}</li>
       * </ul>
       * The format used will be the shortest that outputs the full value of
       * the time where the omitted parts are implied to be zero.
       *
       * @return a string representation of this time, not null
       */
      @Override
      public String toString() {
          return time.toString() + offset.toString();
      }
  
      //-----------------------------------------------------------------------
      /**
       * Writes the object using a
       * <a href="../../serialized-form.html#java.time.Ser">dedicated serialized form</a>.
       * @serialData
       * <pre>
       *  out.writeByte(9);  // identifies an OffsetTime
       *  // the <a href="../../serialized-form.html#java.time.LocalTime">time</a> excluding the one byte header
       *  // the <a href="../../serialized-form.html#java.time.ZoneOffset">offset</a> excluding the one byte header
       * </pre>
       *
       * @return the instance of {@code Ser}, not null
       */
      private Object writeReplace() {
          return new Ser(Ser.OFFSET_TIME_TYPE, this);
      }
  
      /**
       * Defend against malicious streams.
       *
       * @param s the stream to read
       * @throws InvalidObjectException always
       */
      private void readObject(ObjectInputStream s) throws InvalidObjectException {
          throw new InvalidObjectException("Deserialization via serialization delegate");
      }
  
      void writeExternal(ObjectOutput out) throws IOException {
          time.writeExternal(out);
          offset.writeExternal(out);
      }
  
      static OffsetTime readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
          LocalTime time = LocalTime.readExternal(in);
          ZoneOffset offset = ZoneOffset.readExternal(in);
          return OffsetTime.of(time, offset);
      }
  
  }
  