Outlook meetings an hour off after the Nov 1 time change? Fix them all
Since Nov 1, 2026, British Columbia, Alberta and Manitoba stay on permanent daylight time while the US fell back. Meetings booked before the update can now show an hour early or late in Outlook and Teams. This web app finds every affected meeting and fixes it, including recurring ones.
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How to tell if you are affected
- A meeting you booked for 10 a.m. now shows 11 a.m. (or 9 a.m.) in Outlook, Teams or on your phone.
- Outlook on one device shows a different time than Outlook on the web or on your Mac or iPhone.
- A recurring series with people in Seattle, Toronto or the US drifted by an hour from Nov 1, 2026.
- The event’s time zone still says Pacific Time (US & Canada), Mountain Time (US & Canada) or Central Time (US & Canada) instead of the new British Columbia, Alberta or Manitoba zone.
Updating Windows, macOS or your phone fixes the clock, not the meetings already in your calendar. See the BC, Alberta and Manitoba pages for what changed in each province.
How it works
- Sign in with Microsoft. Your own Microsoft 365 or Outlook.com account, with Calendars.ReadWrite permission.
- Scan. A read-only scan lists the events stored in Pacific, Mountain or Central (US) time zones from Nov 1, 2026 on.
- Preview. See the before and after time for every event and choose the British Columbia, Alberta or Manitoba zone.
- Fix. The meetings you organize are corrected and attendees get the update. Everything is logged.
How is this different from Microsoft’s free admin cmdlet?
Microsoft has announced an Exchange Online PowerShell cmdlet, Invoke-CalendarEventMigration. It is free, and if your administrator runs it, it may be all you need for one-off meetings. Here is where it stops:
| Microsoft’s cmdlet | This app | |
|---|---|---|
| Recurring meetings | Not covered (“next version”, no date) | Fixes the series and re-applies moved occurrences |
| Needs an administrator | Yes, Exchange Online PowerShell | No, you sign in with your own account (unless your organization blocks user app approval) |
| Outlook.com and personal accounts | No | Yes |
| Mac, iPhone, new Outlook | Admin tool; does not touch your client | Fixes the event in your mailbox, so every app shows the right time |
| Undo | Preview mode only | Undo for 30 days |
| Meetings you were invited to | Only meetings the mailbox organizes | Attendee report with an email to each organizer |
Pricing
The first 10 events are free. After that, a one-time $5.99 CAD covers every event in your account. No subscription. Try the first 10 events free before you pay; purchases are final. Paid by card through Stripe.
Need it for a team? Contact us about organization pricing.
Undo and safety
Each change is logged with the event ID and the old and new times, and you can undo it for 30 days. The scan never writes anything. See the privacy policy.
Honest limits
- Only organizers can fix a meeting. For meetings you were invited to, the app cannot change them; it prepares an email asking the organizer.
- Microsoft 365 and Outlook.com only. Google Calendar is not supported yet.
- Some organizations block user app approval. Then an administrator has to approve the app once.
- Recurring series: the app re-applies moved occurrences, and lists any it could not restore so none are lost silently.
- It fixes calendar events, not clocks. Update Windows and your phone for correct clocks. Other Microsoft services with their own time zone problems (for example Teams Events, Teams Rooms displays, Power Automate) are outside this app.
- It does not tell you which time zone is “right” for an unusual event: you see the before and after and confirm.
Pages for your situation
Alberta · British Columbia · Manitoba · Recurring meetings · Outlook for Mac and iPhone · Teams meetings
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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.
Is there a free Microsoft fix?
Microsoft has announced an Exchange Online PowerShell cmdlet, Invoke-CalendarEventMigration, for single-instance meetings you organize. It needs an administrator, works for Exchange Online only, and does not cover recurring meetings. If your administrator runs it and your meetings are all one-off, you may not need this app.
How do I change the time zone of a recurring meeting in Outlook?
Manually, you open the series and change its time zone, but Microsoft says this resets every moved or edited occurrence. The app rewrites the series and then re-applies the occurrences that changed. Anything it cannot restore is listed for you, not silently dropped.
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 does Outlook on Mac or iPhone show a different time than Outlook on the web?
Clients treat the stored time zone differently: classic Outlook follows the Windows zone, while new Outlook for Mac and Outlook for iOS have been reported to show Alberta and BC events an hour off. Correcting the time zone stored on the event in your mailbox fixes it for every app that reads that mailbox.
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.
Do I need my IT administrator?
You do not have to be an administrator to scan and fix your own calendar: you sign in with your own Microsoft account. Some organizations restrict users from approving apps, and then an administrator has to approve it once.
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.
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.
Outlook asked whether to update my meeting hours time zone. Does that fix my meetings?
No. That prompt only changes the working-hours setting on your mailbox. Existing meetings keep the time zone they were booked in, so events stored in a US zone still show an hour off until the organizer changes them.
Will this fix Google Calendar?
Not yet. It works with Microsoft 365 and Outlook.com calendars. Google Calendar support is something we may add later.
Does this affect Saskatchewan or Yukon?
No. Saskatchewan and Yukon already stay on a fixed offset all year, so they did not change on Nov 1, 2026. The app only offers the British Columbia, Alberta and Manitoba zones as targets.