This function retrieves the working hours configuration from the calendar settings
for Exchange Online mailboxes.
It returns the time zone, start/end times, and enabled
days for each mailbox.
The function can filter mailboxes by identity or by domain.
The identity of the mailbox to retrieve the working hours configuration for.
If not specified, the function retrieves the configuration for all mailboxes.
This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable,
-InformationAction, -InformationVariable, -OutBuffer, -OutVariable, -PipelineVariable,
-ProgressAction, -Verbose, -WarningAction, and -WarningVariable. For more information, see
about_CommonParameters.
