Lisbon to San Luis: time difference
San Luis is 4 h behind Lisbon. Live clocks for both, the working hours they share, and how each one sits against your own time.
−4 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Lisbon 15:37 3:37 PM San Luis 11:37 11:37 AM You –:–
15:37 3:37 PM
Western European Summer Time · UTC+1
☀️ 07:44 · 🌙 19:03
11:37 11:37 AM
Argentina Standard Time · UTC-3
☀️ 06:48 · 🌙 19:37
·
−4 h
San Luis is 4 h behind Lisbon.
When you, Lisbon and San Luis are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇵🇹 Lisbon
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 Luis
20 8 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇹 Lisbon | 🇦🇷 San Luis |
|---|---|---|
| Local time | 15:37 | 11:37 |
| Local date | Tuesday, October 13, 2026 | Tuesday, October 13, 2026 |
| Time zone | Western European Summer Time | Argentina Standard Time |
| UTC offset | UTC+1 | UTC-3 |
| Offset from Lisbon | — | −4 h |
| IANA zone | Europe/Lisbon | America/Argentina/San Luis |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:44 | 06:48 |
| Sunset | 19:03 | 19:37 |
| Daylight | 11 h 19 min | 12 h 49 min |
| People on this clock | 545,923 | 204,019 |
Compare Lisbon with another city
More comparisons with Lisbon: the time zones next to it and the far side of the clock.
Big time differences
Lisbon and San Luis: common questions
How far behind Lisbon is San Luis?
San Luis is 4 hours behind Lisbon: UTC−3 against UTC+1.
What time is it in San Luis when it is 9:00 AM in Lisbon?
When it is 9:00 AM in Lisbon, it is 5:00 AM in San Luis.
What time is it in San Luis at the end of the working day in Lisbon?
The working day in Lisbon ends at 6:00 PM; in San Luis it is 2:00 PM at that moment.
Is there a time when both Lisbon and San Luis are at work?
Yes: from 1:00 PM to 6:00 PM in Lisbon (9:00 AM to 2:00 PM in San Luis), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in San Luis compared with Lisbon?
The new day starts in San Luis later: until 4:00 AM in Lisbon, it is still the previous day there. From 8:00 PM in San Luis, Lisbon is already on the next day.
Does the time difference between Lisbon and San Luis change?
Yes. The clocks change only in Lisbon. From October 25, 2026, San Luis will be 3 hours behind Lisbon.
