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<!--- Also test if the latest release and devel branch are affected too -->
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##### SUMMARY
<!--- Explain the problem briefly below -->
Calling win_dsc with the ScheduledTask resource from https://github.com/PowerShell/ComputerManagementDsc/wiki/ScheduledTask 
worked in 2.7 but fails in 2.8 - Tested in 2.8.2 and 2.8.3.
Possibly related to the exec_wrapper.  The AnsiballZ_win_dsc.ps1 LOOKS correct...
##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
win_dsc
##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
ansible 2.8.3
  config file = None
  configured module search path = [u'/home/mundym/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.5 (default, Oct 30 2018, 23:45:53) [GCC 4.8.5 20150623 (Red Hat 4.8.5-36)]
```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```paste below

```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->
CentOS 7 for Ansible, target OS is Windows Server 2016

##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->
Try to create a scheduled task with minimal options but definitely include start time
<!--- Paste example playbooks or commands between quotes below -->
```yaml
    - set_fact:
        scheduled_tasks:
          - task_name: "Task"
            task_path: "{{task_path}}"
            action_executable: "powershell.exe"
            action_arguments: "scriptname"
            action_workingpath: "dir"
            schedule_type: Daily
            days_interval: 1
            start_time: "06:00PM"
             executeas_credential_username: "User"
             executeas_credential_password:  "Password"
             start_when_available: False
             execution_timelimit: "72:00:00"
            logon_type: Password
            state: Present
    - win_psmodule:
        name: ComputerManagementDsc
    - win_dsc:
        resource_name: ScheduledTask
        TaskName                    : "{{ item.task_name }}"
        TaskPath                    : "{{ task_path }}"
        Description                 : "{{ item.description | default(omit) }}"
        ActionExecutable            : "{{ item.action_executable }}"
        ActionArguments             : "{{ item.action_arguments | default(omit) }}"
        ActionWorkingPath           : "{{ item.action_workingpath | default(omit) }}"
        ScheduleType                : "{{ item.schedule_type}}"
        DaysInterval                : "{{ item.days_interval | default(omit) }}"
        WeeksInterval               : "{{ item.weeks_interval | default(omit) }}"
        RepeatInterval              : "{{ item.repeat_interval | default(omit) }}"
        StartTime                   : "{{ item.start_time | default(omit) }}"
        DaysOfWeek                  : "{{ item.days_of_week | default(omit) }}"
        ExecuteAsCredential_username: "{{ item.executeas_credential_username | default(omit) }}"
        ExecuteAsCredential_password: "{{ item.executeas_credential_password | default(omit) }}"
        LogonType                   : "{{ item.logon_type | default(omit) }}"
        RandomDelay                 : "{{ item.random_delay | default(omit) }}"
        RepetitionDuration          : "{{ item.repetition_duration | default('Indefinitely') }}"
        DisallowDemandStart         : "{{ item.disallow_demand_start   | default(False) }}"
        DisallowHardTerminate       : "{{ item.disallow_hard_terminate | default(False) }}"
        Compatibility               : "{{ item.compatibility | default('Vista') }}"
        Hidden                      : "{{ item.hidden | default(False) }}"
        RunOnlyIfIdle               : "{{ item.run_only_if_idle   | default(omit) }}"
        IdleDuration                : "{{ item.idle_duration | default(omit) }}"
        IdleWaitTimeout             : "{{ item.idle_wait_timeout  | default(omit) }}"
        RestartOnIdle               : "{{ item.restart_on_idle    | default(omit) }}"
        DontStopOnIdleEnd           : "{{ item.dont_stop_on_idle_end | default(omit) }}"
        DisallowStartOnRemoteAppSession: "{{ item.disallow_start_on_remote_app_session | default(False) }}"
        ExecutionTimeLimit          : "{{ item.execution_time_limit  | default(omit) }}"
        RestartCount                : "{{ item.restart_count  | default(omit) }}"
        RestartInterval             : "{{ item.restart_interval  | default(omit) }}"
        multipleInstances           : "{{ item.multiple_instances | default('IgnoreNew') }}"
        Priority                    : "{{ item.priority| default('7') }}"
        RunLevel                    : "{{ item.runlevel | default('Limited') }}"
        Enable                      : true
        Ensure                      : Present
      loop: "{{scheduled_tasks}}"
```

<!--- HINT: You can paste gist.github.com links for larger files -->

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->
Task will be created

##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->

<!--- Paste verbatim command output between quotes -->
```paste below
 "msg": "argument for StartTime is of type System.String and we were unable to convert to delegate: Exception calling \"ParseExact\" with \"4\" argument(s): \"String was not recognized as a valid DateTime.\""
```

name: xWebAdministration
    state: present
- name: Create IIS Website with Binding and Authentication options
  win_dsc:
    resource_name: xWebsite
    Ensure: Present
    Name: DSC Website
    State: Started
    PhysicalPath: C:\inetpub\wwwroot
    BindingInfo: # Example of a CimInstance[] DSC parameter (list of dicts)
    - Protocol: https
      Port: 1234
      CertificateStoreName: MY
      CertificateThumbprint: C676A89018C4D5902353545343634F35E6B3A659
      HostName: DSCTest
      IPAddress: '*'
      SSLFlags: '1'
    - Protocol: http
      Port: 4321
      IPAddress: '*'
    AuthenticationInfo: # Example of a CimInstance DSC parameter (dict)
      Anonymous: no
      Basic: true
      Digest: false
      Windows: yes
'''
RETURN = r'''
module_version:
    description: The version of the dsc resource/module used.
    returned: always