🇸🇹 Sao Tome, Sao Tome and Principe
22
- Greenwich Mean Time
- UTC+0
- Daytime
☀️ 05:18 · 🌙 17:24 · 12 h 6 min
Sao Tome to Buenos Aires: time difference
Buenos Aires is 3 h behind Sao Tome. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇦🇷 Buenos Aires, Argentina
22
- Argentina Standard Time
- UTC-3
- Daytime
☀️ 06:19 · 🌙 19:04 · 12 h 45 min
−3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Sao Tome 12:25 12:25 PM Buenos Aires 09:25 9:25 AM You –:–
12:25 12:25 PM
Greenwich Mean Time · UTC+0
☀️ 05:18 · 🌙 17:24
09:25 9:25 AM
Argentina Standard Time · UTC-3
☀️ 06:19 · 🌙 19:04
·
−3 h
Buenos Aires is 3 h behind Sao Tome.
When you, Sao Tome and Buenos Aires are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇸🇹 Sao Tome
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
🇦🇷 Buenos Aires
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 | 🇸🇹 Sao Tome | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 12:25 | 09:25 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Greenwich Mean Time | Argentina Standard Time |
| UTC offset | UTC+0 | UTC-3 |
| Offset from Sao Tome | — | −3 h |
| IANA zone | Africa/Sao Tome | America/Argentina/Buenos Aires |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:18 | 06:19 |
| Sunset | 17:24 | 19:04 |
| Daylight | 12 h 6 min | 12 h 45 min |
| People on this clock | 53,300 | 2,891,082 |
Compare Sao Tome with another city
More comparisons with Sao Tome: the time zones next to it and the far side of the clock.
Big time differences
Sao Tome and Buenos Aires: common questions
How many hours behind Sao Tome is Buenos Aires?
The clocks in Buenos Aires are 3 hours behind those in Sao Tome (UTC−3 and UTC+0).
What time is it in Buenos Aires at the start of the working day in Sao Tome?
The working day in Sao Tome starts at 9:00 AM; in Buenos Aires it is 6:00 AM at that moment.
What time is it in Buenos Aires at the end of the working day in Sao Tome?
The working day in Sao Tome ends at 6:00 PM; in Buenos Aires it is 3:00 PM at that moment.
When is a good time to call Buenos Aires from Sao Tome?
Between 12:00 PM and 6:00 PM in Sao Tome – that is 9:00 AM to 3:00 PM in Buenos Aires – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Buenos Aires?
Until 3:00 AM in Sao Tome it is still the previous day in Buenos Aires. The other way round, from 9:00 PM in Buenos Aires it is already the next day in Sao Tome.
Does the time gap between Sao Tome and Buenos Aires change during the year?
No, the clocks change neither in Sao Tome nor in Buenos Aires, so the gap is 3 hours all year round.
