Reykjavik to Castro: time difference
Castro is 3 h behind Reykjavik. 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.
Reykjavik 00:51 12:51 AM Castro 21:51 9:51 PM You –:–
00:51 12:51 AM
Greenwich Mean Time · UTC+0
☀️ 08:24 · 🌙 18:04
21:51 9:51 PM
Chile Summer Time · UTC-3
☀️ 07:02 · 🌙 20:20
·
−3 h
Castro is 3 h behind Reykjavik.
When you, Reykjavik and Castro are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇮🇸 Reykjavik
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
🇨🇱 Castro
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 | 🇮🇸 Reykjavik | 🇨🇱 Castro |
|---|---|---|
| Local time | 00:51 | 21:51 |
| Local date | Sunday, October 18, 2026 | Saturday, October 17, 2026 |
| Time zone | Greenwich Mean Time | Chile Summer Time |
| UTC offset | UTC+0 | UTC-3 |
| Offset from Reykjavik | — | −3 h |
| IANA zone | Atlantic/Reykjavik | America/Santiago |
| Daylight saving | Not observed | On summer time → UTC-4, Apr 3, 23:00 |
| Sunrise | 08:24 | 07:02 |
| Sunset | 18:04 | 20:20 |
| Daylight | 9 h 40 min | 13 h 18 min |
| People on this clock | 136,894 | 33,417 |
Compare Reykjavik with another city
More comparisons with Reykjavik: the time zones next to it and the far side of the clock.
Big time differences
Reykjavik and Castro: common questions
How many hours behind Reykjavik is Castro?
The clocks in Castro are 3 hours behind those in Reykjavik (UTC−3 and UTC+0).
What time is it in Castro at the start of the working day in Reykjavik?
The working day in Reykjavik starts at 9:00 AM; in Castro it is 6:00 AM at that moment.
If it is 6:00 PM in Reykjavik, what time is it in Castro?
At 6:00 PM in Reykjavik, clocks in Castro show 3:00 PM.
Is there a time when both Reykjavik and Castro are at work?
Yes: from 12:00 PM to 6:00 PM in Reykjavik (9:00 AM to 3:00 PM in Castro), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Reykjavik is it still yesterday in Castro?
Before 3:00 AM in Reykjavik, the date in Castro has not changed yet. From 9:00 PM in Castro, it is already the next day in Reykjavik.
Does the time gap between Reykjavik and Castro change during the year?
Yes – daylight saving time is used in Castro but not in Reykjavik. From April 3, 2027, Castro will be 4 hours behind Reykjavik.
