Santiago to Castle Rock, CO: time difference
Castle Rock, CO is 3 h behind Santiago. 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.
Santiago 16:00 4:00 PM Castle Rock, CO 13:00 1:00 PM You –:–
16:00 4:00 PM
Chile Summer Time · UTC-3
☀️ 07:09 · 🌙 19:52
13:00 1:00 PM
Mountain Daylight Time · UTC-6
☀️ 07:05 · 🌙 18:29
·
−3 h
Castle Rock, CO is 3 h behind Santiago.
When you, Santiago and Castle Rock, CO are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇱 Santiago
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
🇺🇸 Castle Rock, CO
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 | 🇨🇱 Santiago | 🇺🇸 Castle Rock, CO |
|---|---|---|
| Local time | 16:00 | 13:00 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Chile Summer Time | Mountain Daylight Time |
| UTC offset | UTC-3 | UTC-6 |
| Offset from Santiago | — | −3 h |
| IANA zone | America/Santiago | America/Denver |
| Daylight saving | On summer time → UTC-4, Apr 3, 23:00 | On summer time → UTC-7, Nov 1, 01:00 |
| Sunrise | 07:09 | 07:05 |
| Sunset | 19:52 | 18:29 |
| Daylight | 12 h 43 min | 11 h 25 min |
| People on this clock | 6,139,087 | 73,158 |
Compare Santiago with another city
More comparisons with Santiago: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Santiago and Castle Rock, CO: common questions
How many hours behind Santiago is Castle Rock, CO?
The clocks in Castle Rock are 3 hours behind those in Santiago (UTC−6 and UTC−3).
What time is it in Castle Rock, CO, at the start of the working day in Santiago?
The working day in Santiago starts at 9:00 AM; in Castle Rock it is 6:00 AM at that moment.
If it is 6:00 PM in Santiago, what time is it in Castle Rock, CO?
At 6:00 PM in Santiago, clocks in Castle Rock show 3:00 PM.
Is there a time when both Santiago and Castle Rock, CO, are at work?
Yes: from 12:00 PM to 6:00 PM in Santiago (9:00 AM to 3:00 PM in Castle Rock), the working days (9:00 AM–6:00 PM) overlap.
When is it still the previous day in Castle Rock, CO?
Until 3:00 AM in Santiago it is still the previous day in Castle Rock. The other way round, from 9:00 PM in Castle Rock it is already the next day in Santiago.
Is the time difference between Santiago and Castle Rock, CO, the same all year?
No. Both places use summer time, but they switch on different dates, so for a while the gap changes. From November 1, 2026, Castle Rock will be 4 hours behind Santiago.
