Charlestown to Calgary: time difference
Calgary is 2 h behind Charlestown. 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.
Charlestown 03:17 3:17 AM Calgary 01:17 1:17 AM You –:–
03:17 3:17 AM
Atlantic Standard Time · UTC-4
☀️ 06:03 · 🌙 17:53
01:17 1:17 AM
Mountain Daylight Time · UTC-6
☀️ 07:50 · 🌙 18:58
·
−2 h
Calgary is 2 h behind Charlestown.
When you, Charlestown and Calgary are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇰🇳 Charlestown
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
🇨🇦 Calgary
22 10 PM 23 11 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇰🇳 Charlestown | 🇨🇦 Calgary |
|---|---|---|
| Local time | 03:17 | 01:17 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Atlantic Standard Time | Mountain Daylight Time |
| UTC offset | UTC-4 | UTC-6 |
| Offset from Charlestown | — | −2 h |
| IANA zone | America/St Kitts | America/Edmonton |
| Daylight saving | Not observed | On summer time → UTC-7, Nov 1, 01:00 |
| Sunrise | 06:03 | 07:50 |
| Sunset | 17:53 | 18:58 |
| Daylight | 11 h 51 min | 11 h 8 min |
| People on this clock | 1,500 | 1,267,344 |
Compare Charlestown with another city
More comparisons with Charlestown: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Charlestown and Calgary: common questions
How many hours behind Charlestown is Calgary?
The clocks in Calgary are 2 hours behind those in Charlestown (UTC−6 and UTC−4).
What time is it in Calgary when it is 9:00 AM in Charlestown?
When it is 9:00 AM in Charlestown, it is 7:00 AM in Calgary.
What time is it in Calgary at the end of the working day in Charlestown?
The working day in Charlestown ends at 6:00 PM; in Calgary it is 4:00 PM at that moment.
When do working hours in Charlestown and in Calgary overlap?
Working hours (9:00 AM–6:00 PM) overlap from 11:00 AM to 6:00 PM in Charlestown, which is 9:00 AM to 4:00 PM in Calgary.
When does the date change in Calgary compared with Charlestown?
The new day starts in Calgary later: until 2:00 AM in Charlestown, it is still the previous day there. From 10:00 PM in Calgary, Charlestown is already on the next day.
Is the time difference between Charlestown and Calgary the same all year?
Yes. Neither Charlestown nor Calgary switches to summer time, so the gap is always 2 hours.
