Meeting Time Zone Update

Choose your region

Region whose local meeting times you want to keep

Choose based on the local time you intend to keep, rather than your organization's location. In B.C. or Northwest Territories areas following Alberta time, choose Alberta. In Northwestern Ontario areas following Manitoba time, choose Manitoba. Areas already using fixed time, such as Yukon and Saskatchewan, do not need this migration. Meetings in other time zones are left alone.

Select a region before setting your mailbox time zone or scanning meetings.

Before you start

This tool helps users affected by the 2026 time zone changes in British Columbia, Alberta, and Manitoba. Choose your region below. It finds meetings you organized in that region's old time zone and moves selected meetings to the new time zone at the same local clock time.

You will see every change before anything is updated.
Attendees receive a normal meeting update, the same as if you changed the meeting yourself in Outlook.
Meetings organized by other people can only be fixed by their organizer. The tool lists them so you can let them know.

Signed in as

1 Set your calendar time zone

This sets the time zone your calendar is displayed in and the default for new meetings.

Checking your current setting…

2 Find meetings that need updating

Looks at your main calendar from today through the next days.

3 Review and update

Recurring meetings

Changing the time zone on a recurring meeting resets any single meetings you moved or cancelled in that series. Moved meetings are listed below each series. Write them down and adjust them again after the update.

	Meeting	Pattern and time	Notes	Status

These meetings are still in the old time zone but someone else organized them, so only they can update them. Check with the organizer whether the meeting should follow the new regional time or keep its existing time zone.

Meeting	Organizer	Next date and time

These meetings use a custom time zone, usually because they came from a non-Microsoft calendar. Open them in Outlook and check the time by hand.

Meeting	Date and time	Time zone