Castle Rock, CO to San Jose: time difference
San Jose is 1 h ahead of Castle Rock, CO. 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.
Castle Rock, CO 06:55 6:55 AM San Jose 07:55 7:55 AM You –:–
06:55 6:55 AM
Mountain Standard Time · UTC-7
☀️ 06:34 · 🌙 16:54
07:55 7:55 AM
Central Standard Time · UTC-6
☀️ 05:29 · 🌙 17:13
·
+1 h
San Jose is 1 h ahead of Castle Rock, CO.
When you, Castle Rock, CO and San Jose are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Castle Rock, CO
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
🇨🇷 San Jose
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 0 12 AM
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Castle Rock, CO | 🇨🇷 San Jose |
|---|---|---|
| Local time | 06:55 | 07:55 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Mountain Standard Time | Central Standard Time |
| UTC offset | UTC-7 | UTC-6 |
| Offset from Castle Rock, CO | — | +1 h |
| IANA zone | America/Denver | America/Costa Rica |
| Daylight saving | On standard time → UTC-6, Mar 14, 03:00 | Not observed |
| Sunrise | 06:34 | 05:29 |
| Sunset | 16:54 | 17:13 |
| Daylight | 10 h 20 min | 11 h 44 min |
| People on this clock | 73,158 | 342,188 |
Compare Castle Rock, CO with another city
More comparisons with Castle Rock, CO: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Castle Rock, CO and San Jose: common questions
What is the time difference between Castle Rock, CO, and San Jose?
San Jose is 1 hour ahead: it uses UTC−6, while Castle Rock is on UTC−7.
What time is it in San Jose at the start of the working day in Castle Rock, CO?
The working day in Castle Rock starts at 9:00 AM; in San Jose it is 10:00 AM at that moment.
What time is it in San Jose when it is 6:00 PM in Castle Rock, CO?
When it is 6:00 PM in Castle Rock, it is 7:00 PM in San Jose.
When is a good time to call San Jose from Castle Rock, CO?
Between 9:00 AM and 5:00 PM in Castle Rock – that is 10:00 AM to 6:00 PM in San Jose – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in San Jose compared with Castle Rock, CO?
The new day starts in San Jose earlier: at 11:00 PM in Castle Rock it is already midnight there. Until 1:00 AM in San Jose, Castle Rock is still on the previous day.
Does the time difference between Castle Rock, CO, and San Jose change?
Yes. The clocks change only in Castle Rock. From March 14, 2027, San Jose and Castle Rock will have the same time.
