Since the recent time change, we have users that are experiencing calendar invites appearing one hour ahead of the actual scheduled time. I recently ran the tzedit.exe file on both of our OWA boxes and verified that they are indeed set to Central time zone.  Now, once a user receives the calendar invite, it appears in the correct time slot, so long as the end-user does not accept the meeting invite.  Once the end-user accepts the calendar invite, the meeting time changes to being one hour ahead of scheduled time.

Any help would be greatly appreciated!

Thanks!!

Hi,

According to your description, I understand that Outlook calendar display correct time, once the end-user accepts the calendar invite, the meeting time changes to being one hour ahead of scheduled time.
If I misunderstand your concern, please do not hesitate to let me know.

I want to double confirm some points, please help to correct answers for below questions:
1. Are all account or any special user experience this question?
2. How about the mail in problematic account?
3. Are all invitees experience this question?

Please try to login Outlook  with same account to double confirm, also ensure invitee and organizer place in same time zone.
We can check in Exchange side and Client site:
1. Run below command in EMS: Get-MailboxRegionalConfiguration alias
2. Open Control Panel ---> Data and Time ----> Change time zone

I find an similar thread about your question, please refer to:
https://social.technet.microsoft.com/Forums/exchange/en-US/7a235fe1-0b4a-450b-bb31-6b9afee479d7/calendaring-attendee-scheduled-meeting-times-are-incorrectly-displayed-off-by-one-hour?forum=exchangesvrgeneral
Additional, this question may be caused by DST(Daylight Savings Time). For your reference:
https://support.microsoft.com/en-us/gp/cp_dst

Thanks