Porto to San José: time difference
San José is 3 h behind Porto. 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.
Porto 20:37 8:37 PM San José 17:37 5:37 PM You –:–
20:37 8:37 PM
Western European Standard Time · UTC+0
☀️ 07:12 · 🌙 17:26
17:37 5:37 PM
Uruguay Standard Time · UTC-3
☀️ 05:42 · 🌙 19:21
·
−3 h
San José is 3 h behind Porto.
When you, Porto and San José are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇵🇹 Porto
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 José
21 9 PM 22 10 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇹 Porto | 🇺🇾 San José |
|---|---|---|
| Local time | 20:37 | 17:37 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Western European Standard Time | Uruguay Standard Time |
| UTC offset | UTC+0 | UTC-3 |
| Offset from Porto | — | −3 h |
| IANA zone | Europe/Lisbon | America/Montevideo |
| Daylight saving | On standard time → UTC+1, Mar 28, 02:00 | Not observed |
| Sunrise | 07:12 | 05:42 |
| Sunset | 17:26 | 19:21 |
| Daylight | 10 h 14 min | 13 h 39 min |
| People on this clock | 231,828 | 36,747 |
Compare Porto with another city
More comparisons with Porto: the time zones next to it and the far side of the clock.
Big time differences
Porto and San José: common questions
How far behind Porto is San José?
San José is 3 hours behind Porto: UTC−3 against UTC+0.
If it is 9:00 AM in Porto, what time is it in San José?
At 9:00 AM in Porto, clocks in San José show 6:00 AM.
If it is 6:00 PM in Porto, what time is it in San José?
At 6:00 PM in Porto, clocks in San José show 3:00 PM.
When do working hours in Porto and in San José overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Porto, which is 9:00 AM to 3:00 PM in San José.
When is it still the previous day in San José?
Until 3:00 AM in Porto it is still the previous day in San José. The other way round, from 9:00 PM in San José it is already the next day in Porto.
Is the time difference between Porto and San José the same all year?
No. Only Porto switches to summer time, so the gap changes twice a year. From March 28, 2027, San José will be 4 hours behind Porto.
