Castro to Porto: time difference
Porto is 3 h ahead of Castro. Live clocks for both, the working hours they share, and how each one sits against your own time.
+3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Castro 21:13 9:13 PM Porto 00:13 12:13 AM You –:–
21:13 9:13 PM
Chile Summer Time · UTC-3
☀️ 06:35 · 🌙 20:44
00:13 12:13 AM
Western European Standard Time · UTC+0
☀️ 07:11 · 🌙 17:27
·
+3 h
Porto is 3 h ahead of Castro.
When you, Castro 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
🇨🇱 Castro
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 | 🇨🇱 Castro | 🇵🇹 Porto |
|---|---|---|
| Local time | 21:13 | 00:13 |
| Local date | Thursday, November 5, 2026 | Friday, November 6, 2026 |
| Time zone | Chile Summer Time | Western European Standard Time |
| UTC offset | UTC-3 | UTC+0 |
| Offset from Castro | — | +3 h |
| IANA zone | America/Santiago | Europe/Lisbon |
| Daylight saving | On summer time → UTC-4, Apr 3, 23:00 | On standard time → UTC+1, Mar 28, 02:00 |
| Sunrise | 06:35 | 07:11 |
| Sunset | 20:44 | 17:27 |
| Daylight | 14 h 9 min | 10 h 16 min |
| People on this clock | 33,417 | 231,828 |
Compare Castro with another city
More comparisons with Castro: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Castro and Porto: common questions
How many hours ahead of Castro is Porto?
The clocks in Porto are 3 hours ahead of those in Castro (UTC+0 and UTC−3).
What time is it in Porto at the start of the working day in Castro?
The working day in Castro 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 Castro?
The working day in Castro ends at 6:00 PM; in Porto it is 9:00 PM at that moment.
When is a good time to call Porto from Castro?
Between 9:00 AM and 3:00 PM in Castro – that is 12:00 PM to 6:00 PM in Porto – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Porto?
From 9:00 PM in Castro it is already the next day in Porto. The other way round, until 3:00 AM in Porto it is still the previous day in Castro.
Is the time difference between Castro and Porto the same all year?
No. Both places use summer time, but they switch on different dates, so for a while the gap changes. From March 28, 2027, Porto will be 4 hours ahead of Castro.
