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Room Mailbox Working Hours

mara2021 1,121 Reputation points
2023-10-07T01:43:54.2666667+00:00

we use room calendars as shared calendars for some of our departments. For example, a shared vacation calendar. The users and calendars were migrated to exchange online. We have a hybrid deployment. I do not remember working hours being on the on-premises room calendars. That's ok but the working hours are incorrect. The hours should be 8am to 5pm. But the hours are 10 to 7pm. How do I correct this. If possible, is there a way to have 24 hours on the rooms. Thanks.

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  1. Andy David - MVP 157.8K Reputation points MVP Volunteer Moderator
    2023-10-07T15:00:05.5233333+00:00

    Hi, you can set by logging on the mailbox or with Powershell:

    https://learn.microsoft.com/en-us/exchange/recipients/room-mailboxes?view=exchserver-2019

    https://learn.microsoft.com/en-us/powershell/module/exchange/set-mailboxcalendarconfiguration?view=exchange-ps

    Example:

    Set-MailboxCalendarConfiguration -Identity Tony -WorkingHoursStartTime 08:00:00 -WorkingHoursEndTime 17:00:00

    I would also confirm and set the Time Zone :

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