Montreal to Boulder, CO: time difference
Boulder, CO is 2 h behind Montreal. 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.
Montreal 13:58 1:58 PM Boulder, CO 11:58 11:58 AM You –:–
13:58 1:58 PM
Eastern Daylight Time · UTC-4
☀️ 07:18 · 🌙 18:02
11:58 11:58 AM
Mountain Daylight Time · UTC-6
☀️ 07:19 · 🌙 18:17
·
−2 h
Boulder, CO is 2 h behind Montreal.
When you, Montreal and Boulder, CO are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇦 Montreal
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
🇺🇸 Boulder, CO
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 | 🇨🇦 Montreal | 🇺🇸 Boulder, CO |
|---|---|---|
| Local time | 13:58 | 11:58 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Eastern Daylight Time | Mountain Daylight Time |
| UTC offset | UTC-4 | UTC-6 |
| Offset from Montreal | — | −2 h |
| IANA zone | America/Toronto | America/Denver |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | On summer time → UTC-7, Nov 1, 01:00 |
| Sunrise | 07:18 | 07:19 |
| Sunset | 18:02 | 18:17 |
| Daylight | 10 h 44 min | 10 h 58 min |
| People on this clock | 1,762,949 | 106,803 |
Compare Montreal with another city
More comparisons with Montreal: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Montreal and Boulder, CO: common questions
How far behind Montreal is Boulder, CO?
Boulder is 2 hours behind Montreal: UTC−6 against UTC−4.
What time is it in Boulder, CO, when it is 9:00 AM in Montreal?
When it is 9:00 AM in Montreal, it is 7:00 AM in Boulder.
If it is 6:00 PM in Montreal, what time is it in Boulder, CO?
At 6:00 PM in Montreal, clocks in Boulder show 4:00 PM.
When do working hours in Montreal and in Boulder, CO, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 11:00 AM to 6:00 PM in Montreal, which is 9:00 AM to 4:00 PM in Boulder.
When does the date change in Boulder, CO, compared with Montreal?
The new day starts in Boulder later: until 2:00 AM in Montreal, it is still the previous day there. From 10:00 PM in Boulder, Montreal is already on the next day.
Does the time difference between Montreal and Boulder, CO, change?
No. The clocks in Montreal and in Boulder change on the same dates, so the difference stays 2 hours.
