Mason, OH to Montevideo: time difference
Montevideo is 1 h ahead of Mason, OH. 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.
Mason, OH 09:57 9:57 AM Montevideo 10:57 10:57 AM You –:–
09:57 9:57 AM
Eastern Daylight Time · UTC-4
☀️ 07:52 · 🌙 18:54
10:57 10:57 AM
Uruguay Standard Time · UTC-3
☀️ 05:58 · 🌙 19:03
·
+1 h
Montevideo is 1 h ahead of Mason, OH.
When you, Mason, OH and Montevideo are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Mason, OH
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
🇺🇾 Montevideo
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
- Asleep
- Early
- Working hours
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Time zones side by side
| Detail | 🇺🇸 Mason, OH | 🇺🇾 Montevideo |
|---|---|---|
| Local time | 09:57 | 10:57 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Eastern Daylight Time | Uruguay Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Mason, OH | — | +1 h |
| IANA zone | America/New York | America/Montevideo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:52 | 05:58 |
| Sunset | 18:54 | 19:03 |
| Daylight | 11 h 2 min | 13 h 5 min |
| People on this clock | 35,000 | 1,319,108 |
Compare Mason, OH with another city
More comparisons with Mason, OH: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Mason, OH and Montevideo: common questions
How far ahead of Mason, OH, is Montevideo?
Montevideo is 1 hour ahead of Mason: UTC−3 against UTC−4.
What time is it in Montevideo when it is 9:00 AM in Mason, OH?
When it is 9:00 AM in Mason, it is 10:00 AM in Montevideo.
If it is 6:00 PM in Mason, OH, what time is it in Montevideo?
At 6:00 PM in Mason, clocks in Montevideo show 7:00 PM.
When is a good time to call Montevideo from Mason, OH?
Between 9:00 AM and 5:00 PM in Mason – that is 10:00 AM to 6:00 PM in Montevideo – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Montevideo?
From 11:00 PM in Mason, OH, it is already the next day in Montevideo. The other way round, until 1:00 AM in Montevideo it is still the previous day in Mason.
Is the time difference between Mason, OH, and Montevideo the same all year?
No. Only Mason switches to summer time, so the gap changes twice a year. From November 1, 2026, Montevideo will be 2 hours ahead of Mason.
