Castro to Reykjavik: time difference
Reykjavik is 3 h ahead of Castro. 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.
Castro 21:03 9:03 PM Reykjavik 00:03 12:03 AM You –:–
21:03 9:03 PM
Chile Summer Time · UTC-3
☀️ 07:02 · 🌙 20:20
00:03 12:03 AM
Greenwich Mean Time · UTC+0
☀️ 08:24 · 🌙 18:04
·
+3 h
Reykjavik is 3 h ahead of Castro.
When you, Castro and Reykjavik 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
🇮🇸 Reykjavik
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 | 🇮🇸 Reykjavik |
|---|---|---|
| Local time | 21:03 | 00:03 |
| Local date | Saturday, October 17, 2026 | Sunday, October 18, 2026 |
| Time zone | Chile Summer Time | Greenwich Mean Time |
| UTC offset | UTC-3 | UTC+0 |
| Offset from Castro | — | +3 h |
| IANA zone | America/Santiago | Atlantic/Reykjavik |
| Daylight saving | On summer time → UTC-4, Apr 3, 23:00 | Not observed |
| Sunrise | 07:02 | 08:24 |
| Sunset | 20:20 | 18:04 |
| Daylight | 13 h 18 min | 9 h 40 min |
| People on this clock | 33,417 | 136,894 |
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 Reykjavik: common questions
How far ahead of Castro is Reykjavik?
Reykjavik is 3 hours ahead of Castro: UTC+0 against UTC−3.
If it is 9:00 AM in Castro, what time is it in Reykjavik?
At 9:00 AM in Castro, clocks in Reykjavik show 12:00 PM.
If it is 6:00 PM in Castro, what time is it in Reykjavik?
At 6:00 PM in Castro, clocks in Reykjavik show 9:00 PM.
Is there a time when both Castro and Reykjavik are at work?
Yes: from 9:00 AM to 3:00 PM in Castro (12:00 PM to 6:00 PM in Reykjavik), the working days (9:00 AM–6:00 PM) overlap.
When is it already the next day in Reykjavik?
From 9:00 PM in Castro it is already the next day in Reykjavik. The other way round, until 3:00 AM in Reykjavik it is still the previous day in Castro.
Does the time difference between Castro and Reykjavik change?
Yes. The clocks change only in Castro. From April 3, 2027, Reykjavik will be 4 hours ahead of Castro.
