San Luis to Porto: time difference
Porto is 3 h ahead of San Luis. Live clocks for both, the working hours they share, and how each one sits against your own time.
+3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
San Luis 02:12 2:12 AM Porto 05:12 5:12 AM You –:–
02:12 2:12 AM
Argentina Standard Time · UTC-3
☀️ 06:22 · 🌙 19:57
05:12 5:12 AM
Western European Standard Time · UTC+0
☀️ 07:12 · 🌙 17:26
·
+3 h
Porto is 3 h ahead of San Luis.
When you, San Luis and Porto 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 Luis
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
🇵🇹 Porto
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 Luis | 🇵🇹 Porto |
|---|---|---|
| Local time | 02:12 | 05:12 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Argentina Standard Time | Western European Standard Time |
| UTC offset | UTC-3 | UTC+0 |
| Offset from San Luis | — | +3 h |
| IANA zone | America/Argentina/San Luis | Europe/Lisbon |
| Daylight saving | Not observed | On standard time → UTC+1, Mar 28, 02:00 |
| Sunrise | 06:22 | 07:12 |
| Sunset | 19:57 | 17:26 |
| Daylight | 13 h 35 min | 10 h 14 min |
| People on this clock | 204,019 | 231,828 |
Compare San Luis with another city
More comparisons with San Luis: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
San Luis and Porto: common questions
How many hours ahead of San Luis is Porto?
The clocks in Porto are 3 hours ahead of those in San Luis (UTC+0 and UTC−3).
What time is it in Porto at the start of the working day in San Luis?
The working day in San Luis starts at 9:00 AM; in Porto it is 12:00 PM at that moment.
What time is it in Porto when it is 6:00 PM in San Luis?
When it is 6:00 PM in San Luis, it is 9:00 PM in Porto.
When is a good time to call Porto from San Luis?
Between 9:00 AM and 3:00 PM in San Luis – that is 12:00 PM to 6:00 PM in Porto – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Porto?
From 9:00 PM in San Luis it is already the next day in Porto. The other way round, until 3:00 AM in Porto it is still the previous day in San Luis.
Does the time gap between San Luis and Porto change during the year?
Yes – daylight saving time is used in Porto but not in San Luis. From March 28, 2027, Porto will be 4 hours ahead of San Luis.
