Columbia, MD to Calgary: time difference
Calgary is 2 h behind Columbia, MD. 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.
Columbia, MD 10:23 10:23 AM Calgary 08:23 8:23 AM You –:–
10:23 10:23 AM
Eastern Daylight Time · UTC-4
☀️ 07:13 · 🌙 18:37
08:23 8:23 AM
Mountain Daylight Time · UTC-6
☀️ 07:52 · 🌙 18:56
·
−2 h
Calgary is 2 h behind Columbia, MD.
When you, Columbia, MD 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
🇺🇸 Columbia, MD
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 | 🇺🇸 Columbia, MD | 🇨🇦 Calgary |
|---|---|---|
| Local time | 10:23 | 08:23 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Eastern Daylight Time | Mountain Daylight Time |
| UTC offset | UTC-4 | UTC-6 |
| Offset from Columbia, MD | — | −2 h |
| IANA zone | America/New York | America/Edmonton |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | On summer time → UTC-7, Nov 1, 01:00 |
| Sunrise | 07:13 | 07:52 |
| Sunset | 18:37 | 18:56 |
| Daylight | 11 h 25 min | 11 h 4 min |
| People on this clock | 139,698 | 1,267,344 |
Compare Columbia, MD with another city
More comparisons with Columbia, MD: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Columbia, MD and Calgary: common questions
How far behind Columbia, MD, is Calgary?
Calgary is 2 hours behind Columbia: UTC−6 against UTC−4.
If it is 9:00 AM in Columbia, MD, what time is it in Calgary?
At 9:00 AM in Columbia, clocks in Calgary show 7:00 AM.
If it is 6:00 PM in Columbia, MD, what time is it in Calgary?
At 6:00 PM in Columbia, clocks in Calgary show 4:00 PM.
When is a good time to call Calgary from Columbia, MD?
Between 11:00 AM and 6:00 PM in Columbia – that is 9:00 AM to 4:00 PM in Calgary – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Columbia, MD, is it still yesterday in Calgary?
Before 2:00 AM in Columbia, the date in Calgary has not changed yet. From 10:00 PM in Calgary, it is already the next day in Columbia.
Is the time difference between Columbia, MD, and Calgary the same all year?
No. Only Columbia switches to summer time, so the gap changes twice a year. From November 1, 2026, Calgary will be 1 hour behind Columbia.
