Calgary to Portsmouth: time difference
Portsmouth 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 05:51 5:51 AM Portsmouth 07:51 7:51 AM You –:–
05:51 5:51 AM
Mountain Daylight Time · UTC-6
☀️ 07:52 · 🌙 18:56
07:51 7:51 AM
Atlantic Standard Time · UTC-4
☀️ 05:57 · 🌙 17:50
·
+2 h
Portsmouth is 2 h ahead of Calgary.
When you, Calgary and Portsmouth 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
🇩🇲 Portsmouth
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
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇨🇦 Calgary | 🇩🇲 Portsmouth |
|---|---|---|
| Local time | 05:51 | 07:51 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Mountain Daylight Time | Atlantic Standard Time |
| UTC offset | UTC-6 | UTC-4 |
| Offset from Calgary | — | +2 h |
| IANA zone | America/Edmonton | America/Dominica |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | Not observed |
| Sunrise | 07:52 | 05:57 |
| Sunset | 18:56 | 17:50 |
| Daylight | 11 h 4 min | 11 h 52 min |
| People on this clock | 1,267,344 | 3,633 |
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 Portsmouth: common questions
How far ahead of Calgary is Portsmouth?
Portsmouth is 2 hours ahead of Calgary: UTC−4 against UTC−6.
What time is it in Portsmouth when it is 9:00 AM in Calgary?
When it is 9:00 AM in Calgary, it is 11:00 AM in Portsmouth.
What time is it in Portsmouth at the end of the working day in Calgary?
The working day in Calgary ends at 6:00 PM; in Portsmouth it is 8:00 PM at that moment.
When do working hours in Calgary and in Portsmouth 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 Portsmouth.
When does the date change in Portsmouth compared with Calgary?
The new day starts in Portsmouth earlier: at 10:00 PM in Calgary it is already midnight there. Until 2:00 AM in Portsmouth, Calgary is still on the previous day.
Is the time difference between Calgary and Portsmouth the same all year?
Yes. Neither Calgary nor Portsmouth switches to summer time, so the gap is always 2 hours.
