Currently on MDT (UTC−6). No clock changes are scheduled in the time zone database.
Time zone in Calgary
| Country | Canada |
|---|---|
| IANA time zone | America/Edmonton |
| All year | CST (UTC−6), no daylight saving time |
What to know about time in Calgary
Alberta moved to permanent UTC−6 in 2026 (the change took legal effect on 18 June 2026), so Calgary's clocks will not go back on 1 November 2026. It now matches Denver in summer and is an hour ahead of Denver in winter, when it shows the same time as Chicago. The IANA database names the zone America/Edmonton and, from November 2026, labels it CST.
Clock changes in Calgary in 2026 and 2027
- Sunday 8 March 2026: at 02:00 clocks go forward to 03:00. MST (UTC−7) becomes MDT (UTC−6), and the hour in between is skipped.
Times are local. Phones, laptops and other devices that set their time automatically will update themselves. Wall clocks, ovens and car clocks usually need changing by hand.
Time difference between Calgary and other cities
The table shows how far each city is ahead of or behind Calgary, and how that changes when either place changes its clocks between now and the end of 2027.
| City | Now | Through 2026 and 2027 |
|---|---|---|
| London | 7 hours ahead | 7 hours ahead until 25 Oct 2026; 6 hours ahead 25 Oct 2026 to 28 Mar 2027; 7 hours ahead 28 Mar 2027 to 31 Oct 2027; 6 hours ahead from 31 Oct 2027 |
| New York | 2 hours ahead | 2 hours ahead until 1 Nov 2026; 1 hour ahead 1 Nov 2026 to 14 Mar 2027; 2 hours ahead 14 Mar 2027 to 7 Nov 2027; 1 hour ahead from 7 Nov 2027 |
| Los Angeles | 1 hour behind | 1 hour behind until 1 Nov 2026; 2 hours behind 1 Nov 2026 to 14 Mar 2027; 1 hour behind 14 Mar 2027 to 7 Nov 2027; 2 hours behind from 7 Nov 2027 |
| Dubai | 10 hours ahead | 10 hours ahead all year (no difference in clock changes) |
| Mumbai | 11½ hours ahead | 11½ hours ahead all year (no difference in clock changes) |
| Singapore | 14 hours ahead | 14 hours ahead all year (no difference in clock changes) |
| Tokyo | 15 hours ahead | 15 hours ahead all year (no difference in clock changes) |
| Sydney | 17 hours ahead | 17 hours ahead until 4 Apr 2027; 16 hours ahead 4 Apr 2027 to 3 Oct 2027; 17 hours ahead from 3 Oct 2027 |
Working hours overlap
How much of a 09:00–17:00 working day in Calgary overlaps with the same hours elsewhere, using a mid-week day in January and July 2027:
- London: in January, 2 hours: 09:00–11:00 in Calgary is 15:00–17:00 in London; in July, 1 hour: 09:00–10:00 in Calgary is 16:00–17:00 in London.
- New York: in January, 7 hours: 09:00–16:00 in Calgary is 10:00–17:00 in New York; in July, 6 hours: 09:00–15:00 in Calgary is 11:00–17:00 in New York.
Plan around Calgary time
- Convert a time in Calgary to another city, on any date
- Find a meeting time that works for Calgary and up to four other places
- All time zones in Canada