Rosario to Porto: time difference
Porto is 3 h ahead of Rosario. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇵🇹 Porto, Portugal
34
- Western European Standard Time
- UTC+0
- Golden hour
☀️ 07:12 · 🌙 17:26 · 10 h 14 min
+3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Rosario 05:16 5:16 AM Porto 08:16 8:16 AM You –:–
05:16 5:16 AM
Argentina Standard Time · UTC-3
☀️ 06:00 · 🌙 19:34
08:16 8:16 AM
Western European Standard Time · UTC+0
☀️ 07:12 · 🌙 17:26
·
+3 h
Porto is 3 h ahead of Rosario.
When you, Rosario 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
🇦🇷 Rosario
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 | 🇦🇷 Rosario | 🇵🇹 Porto |
|---|---|---|
| Local time | 05:16 | 08:16 |
| 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 Rosario | — | +3 h |
| IANA zone | America/Argentina/Cordoba | Europe/Lisbon |
| Daylight saving | Not observed | On standard time → UTC+1, Mar 28, 02:00 |
| Sunrise | 06:00 | 07:12 |
| Sunset | 19:34 | 17:26 |
| Daylight | 13 h 34 min | 10 h 14 min |
| People on this clock | 1,029,619 | 231,828 |
Compare Rosario with another city
More comparisons with Rosario: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Rosario and Porto: common questions
How many hours ahead of Rosario is Porto?
The clocks in Porto are 3 hours ahead of those in Rosario (UTC+0 and UTC−3).
What time is it in Porto at the start of the working day in Rosario?
The working day in Rosario starts at 9:00 AM; in Porto it is 12:00 PM at that moment.
What time is it in Porto at the end of the working day in Rosario?
The working day in Rosario ends at 6:00 PM; in Porto it is 9:00 PM at that moment.
When do working hours in Rosario and in Porto overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 3:00 PM in Rosario, which is 12:00 PM to 6:00 PM in Porto.
From what time in Rosario is it tomorrow in Porto?
Once it is 9:00 PM in Rosario, the date in Porto has already changed. Until 3:00 AM in Porto, it is still the previous day in Rosario.
Does the time difference between Rosario and Porto change?
Yes. The clocks change only in Porto. From March 28, 2027, Porto will be 4 hours ahead of Rosario.
