San Jose to Castle Rock, CO: time difference
Castle Rock, CO is 1 h behind San Jose. 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.
San Jose 13:13 1:13 PM Castle Rock, CO 12:13 12:13 PM You –:–
13:13 1:13 PM
Central Standard Time · UTC-6
☀️ 05:29 · 🌙 17:13
12:13 12:13 PM
Mountain Standard Time · UTC-7
☀️ 06:34 · 🌙 16:54
·
−1 h
Castle Rock, CO is 1 h behind San Jose.
When you, San Jose 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
🇨🇷 San Jose
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
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 21 9 PM 22 10 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇨🇷 San Jose | 🇺🇸 Castle Rock, CO |
|---|---|---|
| Local time | 13:13 | 12:13 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Central Standard Time | Mountain Standard Time |
| UTC offset | UTC-6 | UTC-7 |
| Offset from San Jose | — | −1 h |
| IANA zone | America/Costa Rica | America/Denver |
| Daylight saving | Not observed | On standard time → UTC-6, Mar 14, 03:00 |
| Sunrise | 05:29 | 06:34 |
| Sunset | 17:13 | 16:54 |
| Daylight | 11 h 44 min | 10 h 20 min |
| People on this clock | 342,188 | 73,158 |
Compare San Jose with another city
More comparisons with San Jose: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
San Jose and Castle Rock, CO: common questions
How many hours behind San Jose is Castle Rock, CO?
The clocks in Castle Rock are 1 hour behind those in San Jose (UTC−7 and UTC−6).
What time is it in Castle Rock, CO, at the start of the working day in San Jose?
The working day in San Jose starts at 9:00 AM; in Castle Rock it is 8:00 AM at that moment.
What time is it in Castle Rock, CO, at the end of the working day in San Jose?
The working day in San Jose ends at 6:00 PM; in Castle Rock it is 5:00 PM at that moment.
Is there a time when both San Jose and Castle Rock, CO, are at work?
Yes: from 10:00 AM to 6:00 PM in San Jose (9:00 AM to 5:00 PM in Castle Rock), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Castle Rock, CO, compared with San Jose?
The new day starts in Castle Rock later: until 1:00 AM in San Jose, it is still the previous day there. From 11:00 PM in Castle Rock, San Jose is already on the next day.
Does the time difference between San Jose and Castle Rock, CO, change?
Yes. The clocks change only in Castle Rock. From March 14, 2027, Castle Rock and San Jose will have the same time.
