Buenos Aires to Sao Tome and Principe: time difference
Sao Tome and Principe is 3 h ahead of Buenos Aires. 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.
Buenos Aires 05:05 5:05 AM Sao Tome and Principe 08:05 8:05 AM You –:–
05:05 5:05 AM
Argentina Standard Time · UTC-3
☀️ 06:19 · 🌙 19:04
08:05 8:05 AM
Greenwich Mean Time · UTC+0
☀️ 05:18 · 🌙 17:24
·
+3 h
Sao Tome and Principe is 3 h ahead of Buenos Aires.
When you, Buenos Aires and Sao Tome and Principe 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
🇸🇹 Sao Tome and Principe
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 | 🇦🇷 Buenos Aires | 🇸🇹 Sao Tome and Principe |
|---|---|---|
| Local time | 05:05 | 08:05 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Argentina Standard Time | Greenwich Mean Time |
| UTC offset | UTC-3 | UTC+0 |
| Offset from Buenos Aires | — | +3 h |
| IANA zone | America/Argentina/Buenos Aires | Africa/Sao Tome |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:19 | 05:18 |
| Sunset | 19:04 | 17:24 |
| Daylight | 12 h 45 min | 12 h 6 min |
| People on this clock | 2,891,082 | 204,327 |
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 Sao Tome and Principe: common questions
How far ahead of Buenos Aires is Sao Tome and Principe?
Sao Tome and Principe is 3 hours ahead of Buenos Aires: UTC+0 against UTC−3.
If it is 9:00 AM in Buenos Aires, what time is it in Sao Tome and Principe?
At 9:00 AM in Buenos Aires, clocks in Sao Tome and Principe show 12:00 PM.
If it is 6:00 PM in Buenos Aires, what time is it in Sao Tome and Principe?
At 6:00 PM in Buenos Aires, clocks in Sao Tome and Principe show 9:00 PM.
Is there a time when both Buenos Aires and Sao Tome and Principe are at work?
Yes: from 9:00 AM to 3:00 PM in Buenos Aires (12:00 PM to 6:00 PM in Sao Tome and Principe), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Sao Tome and Principe compared with Buenos Aires?
The new day starts in Sao Tome and Principe earlier: at 9:00 PM in Buenos Aires it is already midnight there. Until 3:00 AM in Sao Tome and Principe, Buenos Aires is still on the previous day.
Does the time gap between Buenos Aires and Sao Tome and Principe change during the year?
No, the clocks change neither in Buenos Aires nor in Sao Tome and Principe, so the gap is 3 hours all year round.
