Local time · Castle Rock
What time is it in Castle Rock, Colorado?
2:50:29AM
- Time zone
- MST
- America/Denver
- UTC offset
- −7:00
- Standard is −7:00
- Daylight saving
- Not in force
- Starts Sun, Mar 14
- Population
- 83,213
- City proper
Around the world
About this clock
Daylight saving in Castle Rock
Castle Rock is currently on standard time. The next change is Sunday, March 14, 2027, when 2:00 am becomes 3:00 am local time.
Castle Rock sits at 39.38°N, 104.85°W. For sunrise and sunset there — which do depend on exactly where it is, unlike the clock — see sunrise and sunset in Castle Rock.
Clock time against sun time
The clock says the same thing everywhere in Mountain Standard Time, but the sun does not. Over Castle Rock it is highest at 11:43 am today — 17 minutes before clock noon.
At 104.9°W, Castle Rock sits almost exactly on Mountain Standard Time’s 105° meridian, so on standard time the clock and the sun agree to within a few minutes.
Daylight in Castle Rock today
- Sunrise
- 6:41 am
- Sunset
- 4:46 pm
- Day length
- 10 hours 5 minutes
- Longest day
- 14 hours 57 minutes
Today runs 10 hours 5 minutes in Castle Rock, and the day is getting shorter by 2 minutes a day. Across the year it swings 5 hours 34 minutes, from 14 hours 57 minutes at the June solstice down to 9 hours 23 minutes in December.
At 39.4°N that puts Castle Rock between Kailua at 2 hours 22 minutes and Fairbanks at 18 hours 9 minutes.