Montevideo to San Juan: time difference
San Juan 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 02:40 2:40 AM San Juan 01:40 1:40 AM You –:–
02:40 2:40 AM
Uruguay Standard Time · UTC-3
☀️ 06:10 · 🌙 18:55
01:40 1:40 AM
Atlantic Standard Time · UTC-4
☀️ 06:18 · 🌙 18:07
·
−1 h
San Juan is 1 h behind Montevideo.
When you, Montevideo and San Juan 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
🇵🇷 San Juan
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 | 🇵🇷 San Juan |
|---|---|---|
| Local time | 02:40 | 01:40 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Uruguay Standard Time | Atlantic Standard Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Montevideo | — | −1 h |
| IANA zone | America/Montevideo | America/Puerto Rico |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:10 | 06:18 |
| Sunset | 18:55 | 18:07 |
| Daylight | 12 h 45 min | 11 h 49 min |
| People on this clock | 1,319,108 | 322,854 |
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 San Juan: common questions
How far behind Montevideo is San Juan?
San Juan is 1 hour behind Montevideo: UTC−4 against UTC−3.
What time is it in San Juan when it is 9:00 AM in Montevideo?
When it is 9:00 AM in Montevideo, it is 8:00 AM in San Juan.
What time is it in San Juan when it is 6:00 PM in Montevideo?
When it is 6:00 PM in Montevideo, it is 5:00 PM in San Juan.
When is a good time to call San Juan from Montevideo?
Between 10:00 AM and 6:00 PM in Montevideo – that is 9:00 AM to 5:00 PM in San Juan – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Montevideo is it still yesterday in San Juan?
Before 1:00 AM in Montevideo, the date in San Juan has not changed yet. From 11:00 PM in San Juan, it is already the next day in Montevideo.
Does the time gap between Montevideo and San Juan change during the year?
No, the clocks change neither in Montevideo nor in San Juan, so the gap is 1 hour all year round.
