Time in Calgary, Canada
Monday, September 21, 2026
When Calgary changes its clocks
Calgary is one of the places that still shifts its clocks twice a year
Calgary keeps Mountain Standard Time at UTC-07:00 for most of the year, and moves to Mountain Daylight Time at UTC-06:00 during its summer. The shift is 1 hour.
Next change
1 November 2026 — clocks move back by 1 hour, from UTC-06:00 to UTC-07:00.
Upcoming transition dates
- 8 March 2026 — forward to UTC-06:00
- 1 November 2026 — back to UTC-07:00
- 14 March 2027 — forward to UTC-06:00
- 7 November 2027 — back to UTC-07:00
- 12 March 2028 — forward to UTC-06:00
- 5 November 2028 — back to UTC-07:00
When the gap to Calgary changes
Dates in the next year where the difference shifts, by counterpart city
The difference between two cities is not a constant. It changes whenever either side moves its clocks — and because regions switch on different dates, there are short windows each year when the usual gap is wrong. These are the dates that matter for Calgary:
London (United Kingdom)
- From 25 October 2026: Calgary is 6 hours behind London
- From 1 November 2026: Calgary is 7 hours behind London
- From 14 March 2027: Calgary is 6 hours behind London
- From 28 March 2027: Calgary is 7 hours behind London
Frankfurt (Germany)
- From 25 October 2026: Calgary is 7 hours behind Frankfurt
- From 1 November 2026: Calgary is 8 hours behind Frankfurt
- From 14 March 2027: Calgary is 7 hours behind Frankfurt
- From 28 March 2027: Calgary is 8 hours behind Frankfurt
Tokyo (Japan)
- From 1 November 2026: Calgary is 16 hours behind Tokyo
- From 14 March 2027: Calgary is 15 hours behind Tokyo
Daylight and the sun over Calgary
Calgary sits at 51.05°, -114.09°
Longest day
16h 33m of daylight
Shortest day
7h 54m of daylight
Yearly swing
8h 39m between them
That is a swing of 8h 39m between midsummer and midwinter — a large seasonal difference. In practice it means an afternoon call with Calgary lands in broad daylight in June and well after dark in December, even though the clock time has not moved.
Clock time versus solar time
When the clock in Calgary reads 12:00, the sun is not yet overhead — the civil clock runs 36 minutes ahead of mean solar time here.
During summer time that gap widens to 1 hour 36 minutes ahead of the sun, which is the whole point of the exercise — shifting daylight into the evening.
Quick Time Comparisons
See how Calgary time compares to other major cities right now
Time Zone Offset from Calgary
Best Times to Contact Calgary
Optimal calling and meeting hours
Business Hours
Typically 9:00 AM - 5:00 PM local time
Best for professional calls, meetings, and business inquiries
Personal Calls
Evenings 7:00 PM - 10:00 PM local time
Ideal for catching up with family and friends
Pro Tip: Use the meeting coordinator tool above to find overlapping working hours between your location and Calgary. This makes scheduling international meetings much easier!
Cultural Business Context
Calgary, Canada • 05:24 local time
Consider Timing
Outside business hours
Quick Stats
Business Hours Timeline
Best Times to Contact
Times to Avoid
Business hours: 09:00 - 17:00 | Weekend: Sunday, Saturday | Lunch: 12:00 - 13:00
🌍 Cultural awareness enhances business relationships and prevents scheduling conflicts across global teams
Places related to Calgary
Cities that share a clock, a country, or an offset
On exactly the same clock as Calgary
These share the America/Edmonton zone, so they keep the same time as Calgary and change their clocks on the same dates.
Elsewhere in Canada
Canada spans more than one time zone, so these cities are not on Calgary's clock — a common source of scheduling errors when people pick a country rather than a city.
Same offset (UTC-07:00), different part of the world
These sit in other countries but keep the same standard offset as Calgary (Mountain Standard Time). They will not necessarily change clocks on the same dates, so the match can be seasonal rather than permanent.
Meeting Time Coordinator
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Common Questions About Calgary Time
Frequently asked questions
What time zone is Calgary in?
Calgary operates in the America/Edmonton time zone, known as Mountain Standard Time, currently UTC-07:00 (UTC-06:00 during summer time). This clock applies that offset directly from the IANA time zone database.
Does Calgary observe daylight saving time?
Yes. Calgary shifts its clocks by 1 hour, between UTC-07:00 and UTC-06:00. The next change is on 1 November 2026.
What's the time difference between Calgary and my location?
The time comparison tool above shows the current time difference. You can also use our meeting coordinator to find the best times for calls across different time zones.
How accurate is this Calgary clock?
Our clock synchronizes with your device's time and applies the official America/Edmonton time zone offset. It updates every second and automatically handles daylight saving time, ensuring accuracy within a second.
Can I use this for scheduling meetings in Calgary?
Yes! This tool is perfect for scheduling. Use the meeting coordinator above to compare multiple time zones and find optimal meeting times that work for everyone in Calgary and other locations.
Time Zone Facts About Calgary
Interesting information about Calgary's time
IANA identifier
America/Edmonton
Standard time name
Mountain Standard Time
Standard offset
UTC-07:00
Daylight saving
Observed — clocks shift 1 hour to UTC-06:00
Region
North America