Waltham, MA to Medellin: time difference
Medellin is 1 h behind Waltham, MA. Live clocks for both, the working hours they share, and how each one sits against your own time.
−1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Waltham, MA 06:28 6:28 AM Medellin 05:28 5:28 AM You –:–
06:28 6:28 AM
Eastern Daylight Time · UTC-4
☀️ 07:02 · 🌙 18:00
05:28 5:28 AM
Colombia Standard Time · UTC-5
☀️ 05:49 · 🌙 17:47
·
−1 h
Medellin is 1 h behind Waltham, MA.
When you, Waltham, MA 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
🇺🇸 Waltham, MA
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
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 22 10 PM
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Waltham, MA | 🇨🇴 Medellin |
|---|---|---|
| Local time | 06:28 | 05:28 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Eastern Daylight Time | Colombia Standard Time |
| UTC offset | UTC-4 | UTC-5 |
| Offset from Waltham, MA | — | −1 h |
| IANA zone | America/New York | America/Bogota |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:02 | 05:49 |
| Sunset | 18:00 | 17:47 |
| Daylight | 10 h 58 min | 11 h 58 min |
| People on this clock | 60,636 | 2,486,723 |
Compare Waltham, MA with another city
More comparisons with Waltham, MA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Waltham, MA and Medellin: common questions
How many hours behind Waltham, MA, is Medellin?
The clocks in Medellin are 1 hour behind those in Waltham (UTC−5 and UTC−4).
What time is it in Medellin when it is 9:00 AM in Waltham, MA?
When it is 9:00 AM in Waltham, it is 8:00 AM in Medellin.
What time is it in Medellin when it is 6:00 PM in Waltham, MA?
When it is 6:00 PM in Waltham, it is 5:00 PM in Medellin.
Is there a time when both Waltham, MA, and Medellin are at work?
Yes: from 10:00 AM to 6:00 PM in Waltham (9:00 AM to 5:00 PM in Medellin), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Medellin compared with Waltham, MA?
The new day starts in Medellin later: until 1:00 AM in Waltham, it is still the previous day there. From 11:00 PM in Medellin, Waltham is already on the next day.
Does the time difference between Waltham, MA, and Medellin change?
Yes. The clocks change only in Waltham. From November 1, 2026, Medellin and Waltham will have the same time.
