Customise Room Resource work hours in Office 365

I have recently started setting up Room Resources in our Office 365 tenant and quickly discovered that that rooms are only available Monday to Friday 08:00 to 17:00 by default.

Fortunately there is a Powershell command to modify this to suit your room requirements.

First connect to Exchange PowershellSet-MailboxCalendarConfiguration -Identity -WorkingHoursStartTime 00:00:00 -WorkingHoursEndTime 23:59:59

This is for an individual room resource. Alternatively if all your rooms have the same availability schedule you can change all at once with the command below

Powershell Get-MailBox | where {$_.ResourceType -eq "Room"} | Set-MailboxCalendarConfiguration -WorkingHoursStartTime 00:00:00 -WorkingHoursEndTime 23:59:59  

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