Buenos Aires to Sintra: time difference
Sintra is 4 h ahead of Buenos Aires. 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.
Buenos Aires 08:54 8:54 AM Sintra 12:54 12:54 PM You –:–
08:54 8:54 AM
Argentina Standard Time · UTC-3
☀️ 06:07 · 🌙 19:11
12:54 12:54 PM
Western European Summer Time · UTC+1
☀️ 07:51 · 🌙 18:55
·
+4 h
Sintra is 4 h ahead of Buenos Aires.
When you, Buenos Aires and Sintra are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇦🇷 Buenos Aires
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
🇵🇹 Sintra
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 3 3 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇵🇹 Sintra |
|---|---|---|
| Local time | 08:54 | 12:54 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Argentina Standard Time | Western European Summer Time |
| UTC offset | UTC-3 | UTC+1 |
| Offset from Buenos Aires | — | +4 h |
| IANA zone | America/Argentina/Buenos Aires | Europe/Lisbon |
| Daylight saving | Not observed | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 06:07 | 07:51 |
| Sunset | 19:11 | 18:55 |
| Daylight | 13 h 4 min | 11 h 4 min |
| People on this clock | 2,891,082 | 385,654 |
Compare Buenos Aires with another city
More comparisons with Buenos Aires: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Buenos Aires and Sintra: common questions
How many hours ahead of Buenos Aires is Sintra?
The clocks in Sintra are 4 hours ahead of those in Buenos Aires (UTC+1 and UTC−3).
If it is 9:00 AM in Buenos Aires, what time is it in Sintra?
At 9:00 AM in Buenos Aires, clocks in Sintra show 1:00 PM.
What time is it in Sintra when it is 6:00 PM in Buenos Aires?
When it is 6:00 PM in Buenos Aires, it is 10:00 PM in Sintra.
When do working hours in Buenos Aires and in Sintra overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 2:00 PM in Buenos Aires, which is 1:00 PM to 6:00 PM in Sintra.
From what time in Buenos Aires is it tomorrow in Sintra?
Once it is 8:00 PM in Buenos Aires, the date in Sintra has already changed. Until 4:00 AM in Sintra, it is still the previous day in Buenos Aires.
Is the time difference between Buenos Aires and Sintra the same all year?
No. Only Sintra switches to summer time, so the gap changes twice a year. From October 25, 2026, Sintra will be 3 hours ahead of Buenos Aires.
