Change an Office 365 Mailbox Timezone with PowerShell

[scottalanmiller]

In my example we need to change the timezone of mailbox names “hwuser” from Eastern Standard Time to Central Standard Time. Once you have attached to Office 365 via PowerShell we can verify and change the mailbox’ timezone like so:

Get-MailboxRegionalConfiguration -identity hwuser

We can then change the mailbox timezone settings with the equivalent “setter”:

Set-MailboxRegionalConfiguration -identity hwuser -TimeZone "Central Standard Time"

You will need to rerun the “getter” command that we first run to validate that the change has worked.

Originally posted on my Windows Administration blog here in 2013: http://web.archive.org/web/20130929034913/http://www.scottalanmiller.com/windows/2013/04/13/change-an-office-365-mailbox-timezone-with-powershell/