Montevideo to Waltham, MA: time difference
Waltham, MA is 1 h behind Montevideo. 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.
Montevideo 14:39 2:39 PM Waltham, MA 13:39 1:39 PM You –:–
14:39 2:39 PM
Uruguay Standard Time · UTC-3
☀️ 05:59 · 🌙 19:02
13:39 1:39 PM
Eastern Daylight Time · UTC-4
☀️ 07:02 · 🌙 18:00
·
−1 h
Waltham, MA is 1 h behind Montevideo.
When you, Montevideo and Waltham, MA are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇾 Montevideo
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
🇺🇸 Waltham, MA
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
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇾 Montevideo | 🇺🇸 Waltham, MA |
|---|---|---|
| Local time | 14:39 | 13:39 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Uruguay Standard Time | Eastern Daylight Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Montevideo | — | −1 h |
| IANA zone | America/Montevideo | America/New York |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 05:59 | 07:02 |
| Sunset | 19:02 | 18:00 |
| Daylight | 13 h 3 min | 10 h 58 min |
| People on this clock | 1,319,108 | 60,636 |
Compare Montevideo with another city
More comparisons with Montevideo: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Montevideo and Waltham, MA: common questions
How far behind Montevideo is Waltham, MA?
Waltham is 1 hour behind Montevideo: UTC−4 against UTC−3.
What time is it in Waltham, MA, when it is 9:00 AM in Montevideo?
When it is 9:00 AM in Montevideo, it is 8:00 AM in Waltham.
What time is it in Waltham, MA, when it is 6:00 PM in Montevideo?
When it is 6:00 PM in Montevideo, it is 5:00 PM in Waltham.
Is there a time when both Montevideo and Waltham, MA, are at work?
Yes: from 10:00 AM to 6:00 PM in Montevideo (9:00 AM to 5:00 PM in Waltham), the working days (9:00 AM–6:00 PM) overlap.
When is it still the previous day in Waltham, MA?
Until 1:00 AM in Montevideo it is still the previous day in Waltham. The other way round, from 11:00 PM in Waltham it is already the next day in Montevideo.
Does the time difference between Montevideo and Waltham, MA, change?
Yes. The clocks change only in Waltham. From November 1, 2026, Waltham will be 2 hours behind Montevideo.
