Boulder, CO to Toronto: time difference
Toronto is 2 h ahead of Boulder, CO. 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.
Boulder, CO 06:25 6:25 AM Toronto 08:25 8:25 AM You –:–
06:25 6:25 AM
Mountain Daylight Time · UTC-6
☀️ 07:19 · 🌙 18:17
08:25 8:25 AM
Eastern Daylight Time · UTC-4
☀️ 07:38 · 🌙 18:28
·
+2 h
Toronto is 2 h ahead of Boulder, CO.
When you, Boulder, CO and Toronto are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Boulder, CO
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
🇨🇦 Toronto
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 | 🇺🇸 Boulder, CO | 🇨🇦 Toronto |
|---|---|---|
| Local time | 06:25 | 08:25 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Mountain Daylight Time | Eastern Daylight Time |
| UTC offset | UTC-6 | UTC-4 |
| Offset from Boulder, CO | — | +2 h |
| IANA zone | America/Denver | America/Toronto |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 07:19 | 07:38 |
| Sunset | 18:17 | 18:28 |
| Daylight | 10 h 58 min | 10 h 49 min |
| People on this clock | 106,803 | 2,731,571 |
Compare Boulder, CO with another city
More comparisons with Boulder, CO: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Boulder, CO and Toronto: common questions
How far ahead of Boulder, CO, is Toronto?
Toronto is 2 hours ahead of Boulder: UTC−4 against UTC−6.
What time is it in Toronto at the start of the working day in Boulder, CO?
The working day in Boulder starts at 9:00 AM; in Toronto it is 11:00 AM at that moment.
What time is it in Toronto at the end of the working day in Boulder, CO?
The working day in Boulder ends at 6:00 PM; in Toronto it is 8:00 PM at that moment.
When is a good time to call Toronto from Boulder, CO?
Between 9:00 AM and 4:00 PM in Boulder – that is 11:00 AM to 6:00 PM in Toronto – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Toronto compared with Boulder, CO?
The new day starts in Toronto earlier: at 10:00 PM in Boulder it is already midnight there. Until 2:00 AM in Toronto, Boulder is still on the previous day.
Does the time difference between Boulder, CO, and Toronto change?
No. The clocks in Boulder and in Toronto change on the same dates, so the difference stays 2 hours.
