I've seen this happening in the calendar's week view, but it shows the correct time in month view and even the work-week view. Seems like a bug in Outlook, and I haven't found any way to fix it.

Holly crap, nice catch.

We've found that the issue is caused by Daylight Savings in Outlook v16.10. Have you checked the versions that the users are have and compared it to those that aren't experiencing the issue? We noticed that the issue didn't occur in 15.41 and 16.9.

I contacted Microsoft support. They told me the fix for this issue is in the Fast build channel but they couldn't tell me when the production build will receive the update.

I'm seeing this issue as well, but its in all views, its not affecting everyone.

It's a simple fix. In Outlook preferences under Calendar. Change the start of the week to Monday instead of Sunday. That worked for two of my clients. After this week, they can switch it back to Sunday if they want.

@howie_isaacks That works! Thanks.

16.11 updates are available now which should fix the problem. Full installer is here http://macadmins.software

Looks like the fix got rolled into 16.12 (InsiderFast) as well.

Confirmed that 16.11 does fix the issue.

Looks like the fix was slip-streamed into InsiderSlow/InsiderFast releases too.

March 2018 release | Release Date: March 13, 2018 | Version: 16.11.0 (Build 18031100)
https://support.office.com/en-us/article/release-notes-for-office-2016-for-mac-ed2da564-6d53-4542-9954-7e3209681a41

Fix an issue, where if the default time zone for your computer observes daylight saving time (DST) and Week view is selected, you may see that all events are shifted by one hour on the calendar grid on the week when DST starts.

Hmmm...I wonder if 16.16.7 is having the same issue. Got a couple calls from folks on Insider Fast saying Outlook is crashing. Started today.

If you changer your week, either week or work week, to start on Monday, instead of Sunday, the time zones appear correctly.