Alberta and Manitoba Time Change: Calgary, Winnipeg and Toronto
Alberta and Manitoba will not turn their clocks back on Sunday, November 1, 2026. Alberta stays on Alberta Time (UTC−6) and Manitoba stays on UTC−5, while Toronto, Ottawa and Montreal fall back to Eastern Standard Time (UTC−5). Northwestern Ontario is also scheduled to stay on UTC−5 under an Ontario regulation.
Last verified: October 28, 2026.
Winter 2026–2027 Time Differences vs. Toronto
This is a compact summary for the regions that changed. For every other province and the national rules, see our Daylight Saving Time Canada guide.
| Region (Major Cities) | Nov 1, 2026 Clock Action | Winter Offset | When Toronto Is 9:00 AM | Gap vs. Toronto |
|---|---|---|---|---|
| Alberta (Calgary, Edmonton, Red Deer) | NO CHANGE | UTC−6 year-round | 8:00 AM | 1 hour behind (usually 2) |
| Manitoba (Winnipeg, Brandon) | NO CHANGE | UTC−5 year-round | 9:00 AM | Same time (usually 1 behind) |
| Northwestern Ontario (Kenora, Dryden, Fort Frances) | NO CHANGE | UTC−5 year-round | 9:00 AM | Same time (usually 1 behind) |
| British Columbia (Vancouver, Victoria) | NO CHANGE | UTC−7 year-round | 7:00 AM | 2 hours behind (usually 3) |
| Toronto, Ottawa, Montreal | FALLS BACK 1 HR | EST, UTC−5 | 9:00 AM | Reference city |
What changes in March 2027: on March 14, 2027, Toronto and other places that still observe seasonal daylight saving time move forward 1 hour. Alberta and Manitoba keep their offsets, so Calgary goes back to a 2-hour gap behind Toronto and Winnipeg goes back to a 1-hour gap behind.
Winter 2026–2027 Time Difference Checker
Nov 1, 2026 – Mar 13, 2027Pick two Canadian cities and a meeting time. Results apply only to November 1, 2026 through March 13, 2027. The tool has no date input, so it always uses these winter offsets.
Why Alberta and Manitoba Are Not Falling Back
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Alberta: UTC−6 year-round
Alberta announced its move to Alberta Time in June 2026, in step with British Columbia’s permanent daylight time. Calgary and Edmonton stay on UTC−6, matching Regina and Saskatoon.
Manitoba: UTC−5 year-round
Manitoba announced its change on September 17, 2026. The province’s proclamation sets October 31, 2026 as the date the Official Time Amendment Act comes into force. Microsoft documented the change in its Manitoba time zone update.
Northwestern Ontario: UTC−5 west of 90°W
Ontario announced its plan on October 13, 2026. Regulation 333/26 was made October 19, filed October 20, and is scheduled to take effect November 1. It sets the region’s time at UTC−5 year-round. Details are in the Ontario government release.
How to Prevent One-Hour Outlook and Calendar Errors
Before November 1, 2026, install the latest operating-system and application updates, then confirm your Windows and Outlook time zones reflect the new rules. Per Microsoft’s Outlook guidance for Canadian provinces:
- Alberta: select (UTC-06:00) Mountain Time (Alberta) after installing the applicable update. If the update isn’t available yet, Microsoft’s temporary workaround is the Saskatchewan time zone. Switch to the Alberta zone once you can.
- Manitoba: select (UTC-05:00) Manitoba in Outlook. Eastern Time with automatic DST turned off is not a permanent fix.
- British Columbia: select (UTC-07:00) Pacific Time (British Columbia).
- Existing meetings: check appointments on or after November 1, especially recurring meetings created under the old rules. Changing your default time zone doesn’t necessarily fix every existing event. Editing a recurring series can also reset exceptions, such as single meetings you moved, so recheck those after updating.
- Northwestern Ontario: update your device and verify its time-zone data reflects UTC−5 from November 1.
For a full troubleshooting walkthrough, see our Canada time change calendar one-hour-off fix.
Frequently Asked Questions
No. Alberta stays on UTC−6 year-round, so Calgary, Edmonton, Red Deer and Lethbridge do not turn clocks back.
Yes. From November 1, 2026 to March 13, 2027, Manitoba stays on UTC−5 while Toronto falls back to EST (UTC−5). A 9:00 AM meeting in Toronto is 9:00 AM in Winnipeg.
On March 14, 2027, Toronto and other places that still observe seasonal daylight saving time move forward 1 hour. Calgary returns to a 2-hour gap behind Toronto and Winnipeg returns to a 1-hour gap behind.
U.S. states still fall back on November 1, 2026. Calgary (UTC−6) matches Chicago and Dallas (CST), and Winnipeg (UTC−5) matches New York and Miami (EST). Check other pairs with our US-Canada Time Difference Calculator.
Alberta: (UTC-06:00) Mountain Time (Alberta). Manitoba: (UTC-05:00) Manitoba. Install the latest updates first and recheck existing recurring meetings.
Related Guides and Official Sources
More on Ultimate Info Guide
Official References
- Government of Alberta: Alberta’s new time system
- Ontario Regulation 333/26: Variation of Time in Effect
- Government of Ontario: Northwestern Ontario time change
- Microsoft Support: Time zone changes for Canadian provinces
- Microsoft Tech Community: Manitoba 2026 update
- Government of British Columbia: Daylight saving time
