Calgary to Cornwall, ON: time difference
Cornwall, ON is 2 h ahead of Calgary. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Calgary 10:34 10:34 AM Cornwall, ON 12:34 12:34 PM You –:–
10:34 10:34 AM
Mountain Daylight Time · UTC-6
☀️ 08:07 · 🌙 18:37
12:34 12:34 PM
Eastern Daylight Time · UTC-4
☀️ 07:20 · 🌙 18:09
·
+2 h
Cornwall, ON is 2 h ahead of Calgary.
When you, Calgary and Cornwall, ON are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇦 Calgary
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇨🇦 Cornwall, ON
2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM
📍 Your time
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Time zones side by side
| Detail | 🇨🇦 Calgary | 🇨🇦 Cornwall, ON |
|---|---|---|
| Local time | 10:34 | 12:34 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Mountain Daylight Time | Eastern Daylight Time |
| UTC offset | UTC-6 | UTC-4 |
| Offset from Calgary | — | +2 h |
| IANA zone | America/Edmonton | America/Toronto |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 08:07 | 07:20 |
| Sunset | 18:37 | 18:09 |
| Daylight | 10 h 30 min | 10 h 48 min |
| People on this clock | 1,267,344 | 46,867 |
Compare Calgary with another city
More comparisons with Calgary: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Calgary and Cornwall, ON: common questions
What is the time difference between Calgary and Cornwall, ON?
Cornwall is 2 hours ahead: it uses UTC−4, while Calgary is on UTC−6.
If it is 9:00 AM in Calgary, what time is it in Cornwall, ON?
At 9:00 AM in Calgary, clocks in Cornwall show 11:00 AM.
If it is 6:00 PM in Calgary, what time is it in Cornwall, ON?
At 6:00 PM in Calgary, clocks in Cornwall show 8:00 PM.
When do working hours in Calgary and in Cornwall, ON, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 4:00 PM in Calgary, which is 11:00 AM to 6:00 PM in Cornwall.
From what time in Calgary is it tomorrow in Cornwall, ON?
Once it is 10:00 PM in Calgary, the date in Cornwall has already changed. Until 2:00 AM in Cornwall, it is still the previous day in Calgary.
Does the time gap between Calgary and Cornwall, ON, change during the year?
Yes – daylight saving time is used in Cornwall but not in Calgary. From November 1, 2026, Cornwall will be 1 hour ahead of Calgary.
