Meeting Time Zone Fixer

About the November 1 change

On November 1, 2026, British Columbia and Alberta move to permanent daylight time. Clocks will not go back this fall.

Windows and Outlook have new time zones for this: Pacific Time (British Columbia) and Mountain Time (Alberta). Meetings still saved in Pacific Time (US & Canada) or Mountain Time (US & Canada) follow the old rules, so from November 1 they start one hour later than intended, for the organizer and every attendee.

This tool does two things:

1. Corrects your Outlook time zone settings.
2. Moves the meetings you organize to the new time zone at the same local time.

It runs in your browser and acts only on your own mailbox. Nothing changes until you confirm.

What these settings mean

Calendar display time zone is the time zone Outlook shows your calendar in. It should be your province's new zone.

Meeting hours time zone is used for your working hours and free/busy. Because of a Microsoft issue, setting it to the new BC or Alberta zone makes you appear unavailable to everyone. Until Microsoft fixes this, it is set to a zone with the same clock time:

• British Columbia: Yukon Standard Time
• Alberta: Canada Central Standard Time

These are your Outlook on the web and new Outlook settings. Classic Outlook (desktop) uses your Windows time zone, which IT is updating.

How meetings are fixed

Recurring meetings are re-sent as a new series starting November 1 at the same local time. The old series ends before November 1, so past meetings stay in everyone's calendar. Attendees get a new invitation and the Teams link changes.

One-off meetings on or after November 1 are updated in place, and attendees get a normal meeting update.

Only the organizer can fix a meeting, so this tool only lists meetings you organize. Changing just the time zone of a recurring meeting in Outlook is not enough: attendees' calendars stay an hour off.