Fix Outlook meetings that are an hour off after the Manitoba time change
Since Nov 1, 2026, Manitoba stopped changing its clocks and stays on UTC-5 all year. Outlook and Teams meetings you booked before your PC or phone got the new time zone can show an hour away from where you booked them. This app scans your calendar, shows each affected meeting before and after, and fixes them.
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What changed in Manitoba
Manitoba now uses (UTC-05:00) Manitoba (Windows time zone ID Manitoba Standard Time) all year. The US still fell back on Nov 1 and springs forward on March 14, 2027, so the old shared zones – Central Time (US & Canada), now UTC-6 – are now an hour behind Manitoba in winter.
Northwestern Ontario also uses the Manitoba zone. Microsoft’s Windows zone update for Manitoba shipped separately from BC and Alberta, so check that Windows is fully updated.
Why your meetings are an hour off
An Outlook event stores a local time plus the time zone it was booked in. Events booked before the Windows update carry the old US zone, and after Nov 1 Exchange applies the US fall-back to them. Existing events do not migrate on their own, and only the organizer can change an event’s time zone.
What this app does
- Scans the events in your own Microsoft 365 or Outlook.com calendar that are stored in a US-rules zone, from Nov 1, 2026 on.
- Shows the time before and after for each one, so you confirm before anything changes.
- Fixes the meetings you organize, including recurring meetings, and lets you undo for 30 days.
- Lists meetings you were only invited to, with a ready-to-send email to each organizer.
The first 10 events are free, then it is a one-time $5.99 CAD for every event in your account. See what it cannot do.
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Related pages
All provinces and pricing · British Columbia · Alberta · Recurring meetings · Outlook for Mac and iPhone · Teams meetings
Frequently asked questions
Why are my Outlook meetings showing an hour late after the time change?
Events you booked before the Windows update are stamped with a US time zone such as Pacific Standard Time. On Nov 1, 2026 the US fell back an hour but British Columbia, Alberta and Manitoba did not, so those events now land an hour away from where you booked them. Existing events do not move to the new zone by themselves.
Will Outlook fix my meetings automatically?
No. Microsoft’s guidance says existing events are not migrated automatically and that only the organizer can change an event’s time zone. Microsoft’s free Exchange Online cmdlet covers single (non-recurring) meetings only and has to be run by an administrator.
Do I need to update meetings I was invited to?
You cannot fix those yourself, because only the organizer can change a meeting’s time zone. The app lists the meetings you were invited to and prepares a ready-to-send email asking each organizer to fix theirs.
Why is my Teams meeting an hour off after the time change?
A Teams meeting is an Outlook calendar event with a join link, so it has the same stored-time-zone problem. Fixing the Outlook event fixes the time shown for that meeting.
How much does it cost?
The first 10 events you fix are free. After that it is a one-time $5.99 CAD for every event in your account. There is no subscription.
Can I undo a change?
Yes. Every change is logged with the event ID and the old and new times, and you can undo it for 30 days.