San José to Reykjavik: time difference
Reykjavik is 3 h ahead of San José. 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.
San José 17:49 5:49 PM Reykjavik 20:49 8:49 PM You –:–
17:49 5:49 PM
Uruguay Standard Time · UTC-3
☀️ 06:00 · 🌙 19:05
20:49 8:49 PM
Greenwich Mean Time · UTC+0
☀️ 08:33 · 🌙 17:53
·
+3 h
Reykjavik is 3 h ahead of San José.
When you, San José and Reykjavik are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇾 San José
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
🇮🇸 Reykjavik
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 1 1 AM 2 2 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇾 San José | 🇮🇸 Reykjavik |
|---|---|---|
| Local time | 17:49 | 20:49 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Uruguay Standard Time | Greenwich Mean Time |
| UTC offset | UTC-3 | UTC+0 |
| Offset from San José | — | +3 h |
| IANA zone | America/Montevideo | Atlantic/Reykjavik |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:00 | 08:33 |
| Sunset | 19:05 | 17:53 |
| Daylight | 13 h 6 min | 9 h 20 min |
| People on this clock | 36,747 | 136,894 |
Compare San José with another city
More comparisons with San José: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
San José and Reykjavik: common questions
How many hours ahead of San José is Reykjavik?
The clocks in Reykjavik are 3 hours ahead of those in San José (UTC+0 and UTC−3).
What time is it in Reykjavik at the start of the working day in San José?
The working day in San José starts at 9:00 AM; in Reykjavik it is 12:00 PM at that moment.
What time is it in Reykjavik when it is 6:00 PM in San José?
When it is 6:00 PM in San José, it is 9:00 PM in Reykjavik.
When do working hours in San José and in Reykjavik overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 3:00 PM in San José, which is 12:00 PM to 6:00 PM in Reykjavik.
When does the date change in Reykjavik compared with San José?
The new day starts in Reykjavik earlier: at 9:00 PM in San José it is already midnight there. Until 3:00 AM in Reykjavik, San José is still on the previous day.
Does the time difference between San José and Reykjavik change?
No. Neither place uses daylight saving time, so the difference stays 3 hours all year.
