Boulder, CO to Medellin: time difference
Medellin is 1 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 06:27 6:27 AM Medellin 07:27 7:27 AM You –:–
06:27 6:27 AM
Mountain Daylight Time · UTC-6
☀️ 07:19 · 🌙 18:17
07:27 7:27 AM
Colombia Standard Time · UTC-5
☀️ 05:49 · 🌙 17:47
·
+1 h
Medellin is 1 h ahead of Boulder, CO.
When you, Boulder, CO and Medellin 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
🇨🇴 Medellin
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 0 12 AM
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Boulder, CO | 🇨🇴 Medellin |
|---|---|---|
| Local time | 06:27 | 07:27 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Mountain Daylight Time | Colombia Standard Time |
| UTC offset | UTC-6 | UTC-5 |
| Offset from Boulder, CO | — | +1 h |
| IANA zone | America/Denver | America/Bogota |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | Not observed |
| Sunrise | 07:19 | 05:49 |
| Sunset | 18:17 | 17:47 |
| Daylight | 10 h 58 min | 11 h 58 min |
| People on this clock | 106,803 | 2,486,723 |
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 Medellin: common questions
How far ahead of Boulder, CO, is Medellin?
Medellin is 1 hour ahead of Boulder: UTC−5 against UTC−6.
What time is it in Medellin when it is 9:00 AM in Boulder, CO?
When it is 9:00 AM in Boulder, it is 10:00 AM in Medellin.
If it is 6:00 PM in Boulder, CO, what time is it in Medellin?
At 6:00 PM in Boulder, clocks in Medellin show 7:00 PM.
When do working hours in Boulder, CO, and in Medellin overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Boulder, which is 10:00 AM to 6:00 PM in Medellin.
From what time in Boulder, CO, is it tomorrow in Medellin?
Once it is 11:00 PM in Boulder, the date in Medellin has already changed. Until 1:00 AM in Medellin, it is still the previous day in Boulder.
Is the time difference between Boulder, CO, and Medellin the same all year?
No. Only Boulder switches to summer time, so the gap changes twice a year. From November 1, 2026, Medellin will be 2 hours ahead of Boulder.
