Castle Rock
Colorado, United States
Wednesday, 12th August 2026
- UTC offset
- UTC-6
- Time zone
- America/DenverMDT
- Sunrise
- 12:09 pm
- Sunset
- 1:59 am
- Daylight
- 13 hours 49 minutes131 seconds shorter than yesterday
- Daylight saving
- OnNext change in 80 days
Daylight saving in Castle Rock
Clocks go back 1 hour on Sunday, 1st November 2026, at 1:59 am local time (1:00 am after the change).
Right now Castle Rock is on MDT, UTC-6 — daylight saving time. That is 80 days away.
Castle Rock time to your time
Need a specific time rather than right now? or the full converter.
Call times with London
Both places are at work between 9am and 10:00 in Denver — 4pm to 4pm at the other end.
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Time difference between Castle Rock and major cities
| City | Local time | 24h | Difference |
|---|---|---|---|
| Los Angeles PDT | 8:36 pm | 20:36 | 1 hour behind |
| Mexico City CST | 9:36 pm | 21:36 | the same time |
| Chicago CDT | 10:36 pm | 22:36 | 1 hour ahead |
| New York City EDT | 11:36 pm | 23:36 | 2 hours ahead |
| Toronto EDT | 11:36 pm | 23:36 | 2 hours ahead |
| São Paulo UTC-3 | 12:36 am Thu | 00:36 | 3 hours ahead |
| London BST | 4:36 am Thu | 04:36 | 7 hours ahead |
| Paris CEST | 5:36 am Thu | 05:36 | 8 hours ahead |
| Berlin CEST | 5:36 am Thu | 05:36 | 8 hours ahead |
| Johannesburg SAST | 5:36 am Thu | 05:36 | 8 hours ahead |
| Moscow MSK | 6:36 am Thu | 06:36 | 9 hours ahead |
| Cairo EEST | 6:36 am Thu | 06:36 | 9 hours ahead |
| Dubai UTC+4 | 7:36 am Thu | 07:36 | 10 hours ahead |
| Delhi IST | 9:06 am Thu | 09:06 | 11 hours 30 minutes ahead |
| Shanghai CST | 11:36 am Thu | 11:36 | 14 hours ahead |
| Tokyo JST | 12:36 pm Thu | 12:36 | 15 hours ahead |
| Sydney AEST | 1:36 pm Thu | 13:36 | 16 hours ahead |
| Auckland NZST | 3:36 pm Thu | 15:36 | 18 hours ahead |
About Castle Rock
- Population
- 55591
- Coordinates
- 39.372, -104.856
- Region
- Colorado, United States
- IANA zone
- America/Denver
- Solar noon
- 7:04 pm
Sunrise and sunset above are computed from these coordinates with the NOAA solar equations — not looked up from a table, and not the same as the neighbouring city's.
Nearby and related
Questions people ask
What time is it in Castle Rock right now?
It is 9:36 pm (21:36 on a 24-hour clock) on Wednesday, 12th August 2026 in Castle Rock. The clock on this page updates every second and is set from the server, not from your device, so it stays right even if your own clock has drifted.
What time zone is Castle Rock in?
Castle Rock uses the America/Denver time zone, currently MDT (UTC-6). That IANA identifier is the one to put in a calendar invite or a database column — abbreviations like MDT are ambiguous, IANA identifiers are not.
Is Castle Rock on daylight saving time right now?
Yes — Castle Rock is currently observing daylight saving time as MDT. Clocks go back 1 hour on Sunday, 1st November 2026, at 1:59 am local time (1:00 am after the change).
When do the clocks change in Castle Rock?
The next change is on Sunday, 1st November 2026. Clocks go back 1 hour on Sunday, 1st November 2026, at 1:59 am local time (1:00 am after the change). After that the offset becomes UTC-7.
What time is sunrise and sunset in Castle Rock today?
The sun rises at 6:09 am and sets at 7:59 pm today, giving 13 hours 49 minutes of daylight. That is 131 seconds shorter than yesterday.
How many hours ahead is Castle Rock of Los Angeles?
Castle Rock is 1 hour ahead of Los Angeles. When it is 9:36 pm in Castle Rock, it is 8:36 pm in Los Angeles. The full comparison table on this page covers twenty major cities and recalculates itself whenever either end changes its clocks.
Where exactly is Castle Rock?
Castle Rock is in Colorado, United States, at 39.37° N, 104.86° W, with a population of about 55,591. Those coordinates are what the sunrise and sunset times above are calculated from.