Canada's Time Zones This Winter: The New Map, Zone by Zone

Canada uses five winter offsets this year, down from six. Vancouver is on UTC-7, Edmonton and Inuvik on UTC-6 and Winnipeg on UTC-5, each an hour later than last winter. No Canadian zone uses UTC-8 now. Toronto, Halifax and St. John's still change clocks.

By World Date and Time editorial team · Published 4 November 2026

On 1 November 2026 four of Canada’s time zones did not turn their clocks back, and that redrew the winter map. Last winter the 23 Canadian zone names in the tz database sat on six different offsets, from UTC-3:30 in Newfoundland to UTC-8 on the British Columbia coast. This winter they sit on five, because no Canadian zone is on UTC-8 any more. This is the reference page for the new map: which offset each zone uses now, how that compares with a year ago, and what it does to the time differences people use every day. The story of how each province got here is in the guide to the last clock change of 2026, so this page keeps the history short. For a live clock in any of these places start at the Canada time page.

The map this winter, zone by zone

Four of the 23 zone names moved: Vancouver, Edmonton, Inuvik, Winnipeg. Each is one hour later on the clock this winter than it was last winter, and each is on that new offset all year. The other nineteen are where they were. The table lists all 23 in order from east to west by this winter’s offset, with a short summary of the place each name covers, from the zone.tab comments (IANA zone.tab). The last column is the useful one for planning: ten of the names still change their clocks in 2027, all on 14 March and 7 November, and thirteen do not.

Method: Place notes are short summaries of the zone.tab comments, not verbatim. Offsets read from tzdata 2026f at 12:00 UTC on 15 January 2026 and 15 January 2027. Clock changes counted by reading tzdata through 2027.

The ten that still change are St. John's, Halifax, Glace Bay, Moncton, Goose Bay, Toronto, Iqaluit, Resolute, Rankin Inlet, Cambridge Bay. That group runs from Newfoundland through Atlantic Canada, Ontario and most of Quebec to the eastern and central parts of Nunavut, plus Cambridge Bay in the west of the territory. The thirteen that hold one offset include the zones that just stopped, and the ones that never moved: Saskatchewan, Yukon, Atikokan in northwestern Ontario, Creston and the north-east of British Columbia, and Blanc-Sablon on the Lower North Shore of Quebec. The Canada 2027 page has the 2027 dates in order.

Six offsets became five

The second table counts the zone names on each winter offset. UTC-8 is the one that emptied. Vancouver was the only Canadian zone name on it last winter, and it is now on UTC-7 with 6 other names that share that offset (Cambridge Bay, Creston, Dawson Creek, Fort Nelson, Whitehorse, Dawson). UTC-6 went from 5 names to 6: Winnipeg left it for UTC-5, while Edmonton and Inuvik arrived from UTC-7. UTC-5 gained Winnipeg and now holds 4 names. The shape of the map did not change at the east end, where UTC-3:30 and UTC-4 are as they were.

Method: Zone names from zone.tab, offsets read from tzdata 2026f at 12:00 UTC on 15 January 2026 and 15 January 2027. Counts are zone names, not people or places.

Counting zone names is not counting population, and one name can cover a lot of ground. Edmonton’s name covers Alberta, the east of British Columbia, the east of the Northwest Territories and the west of Saskatchewan, so Calgary uses it too. It is why Calgary clocks follow Edmonton’s offset. The Halifax time page shows a zone that did not move: the Atlantic zone is on UTC-4 this winter, as it was last winter. The Edmonton time zone page gives the zone’s rules. The Northwest Territories are split across two names. Inuvik, in the west, has its own, and there is no Inuvik city page here, so the place to look is the Inuvik time zone page.

How it happened, in one paragraph

British Columbia announced on 2 March 2026 that its clock change on 8 March would be the last (Province of British Columbia). Alberta’s move to a permanent UTC-6 is dated 18 June in the tz database’s release notes, the same date as an Alberta order in council that proclaims sections of the Red Tape Reduction Statutes Amendment Act, 2026 into force (Order in Council 204/2026). The order itself does not mention clocks, so the time rule rests on the notes. The Northwest Territories followed on 21 August, and Manitoba announced on 17 September that its clocks would not go back on 1 November (Government of Manitoba). The tz database’s 2026f notes add that a provincial regulation lets the northwest of Ontario stay aligned with Winnipeg, and that Saskatchewan’s Time Act, 2026 came into force on 30 October with no change expected (IANA release notes). Saskatchewan already held UTC-6 all year. The provinces and territories call the new arrangement permanent daylight saving time. The tz database dates each of the four moves to 02:00 on 1 November 2026, the hour the autumn change would have happened, as a workaround for a limitation in Unicode’s locale data. No offset changes then: the clock stays on the permanent offset it reached earlier, and tzdata only relabels it from daylight to standard time (tz database file northamerica), which is why the last column of the table below reads the same for all four.

Method: Dates from the IANA release notes 2026b to 2026e. Offsets read from tzdata 2026f. tzdata dates each move to 2 am on 1 November 2026, the hour the autumn change would have happened, as a workaround for a limitation in Unicode’s locale data. The UTC offset does not change on that date; only the label does.

What it does to the time differences people use

Time differences are where the change shows up in daily life. The third table gives ten pairs, each as the first place’s offset minus the second’s, in hours, on four dates. Vancouver, which was level with Los Angeles all of last year, is one hour ahead of it this winter (+1). Calgary and Edmonton are +1 against Denver, Winnipeg is +1 against Chicago, and each of the three is back to 0 on 15 April 2027. The reason is simple. From Sunday 14 March 2027 Los Angeles, Denver and Chicago move their clocks forward and Vancouver, Edmonton and Winnipeg do not, so the gap closes. It opens again when the US goes back on 7 November 2027 (see the United States 2027 page).

Method: Each figure is the first place's UTC offset minus the second's, in hours, read from tzdata 2026f at 12:00 UTC on 15 January 2026, 15 July 2026, 15 January 2027 and 15 April 2027. Calgary and Edmonton share the zone America/Edmonton.

Within Canada the changes cut both ways. Calgary and Edmonton are -1 against Toronto this winter, one hour closer than the -2 of last winter, and Vancouver is -2 against Toronto, also closer. Winnipeg now matches Toronto (0) in winter. Regina, which never moved, is -1 against Winnipeg now and was level with it last winter, and Whitehorse, which was an hour ahead of Vancouver, is level with it. Across the Atlantic, Calgary is 6 hours behind London this winter, not 7, until Britain moves to summer time on Sunday 28 March 2027, when the gap becomes 7 again. Vancouver is 7 hours behind London now and 8 from spring. The Calgary and Toronto and Calgary and London pages show the live gaps, and the world map of zones is the time zone map.

What the labels say, and an honest caution about old software

Names are a trap on this map. The tz database labels the new fixed offsets CST for Edmonton and Inuvik, MST for Vancouver and EST for Winnipeg, the traditional abbreviations for those offsets, while the provinces describe their time as daylight saving time kept all year (IANA release notes). We use the offsets as the safe description. “UTC-6” is the same in every source, and whether a given label reads standard or daylight is a naming choice. Calgary, for instance, is on UTC-6 all year, and whether you call that Mountain or Central is a matter of which source you ask.

The caution is for anyone whose software has not caught up. Every figure here is computed from tzdata 2026f, released on 27 October 2026. A phone, a computer or a program that has not had a time zone update since early 2026 may still switch Vancouver, Edmonton or Winnipeg back an hour on 1 November, and the browser’s locale data can lag the database. The National Research Council’s Canada time page says it is under review and that, from 1 November 2026, some of its information will no longer be accurate (National Research Council Canada). If a device shows the wrong hour for one of these cities, an operating system update is the fix. Compare the offset on the Winnipeg page and the Vancouver time zone page with what your own clock says.

To put any of these clocks on your own page, the clock widgets take a city or a zone name, and they read the same tz data.