Time.is

Time in Castle Rock, Colorado, United States now

15:40:43

Monday, 9 March 2026 р, week 11

Castle Rock switched to daylight saving time at 02:00 on Sunday, 8 March. The time was set one hour forward.
Sun: ↑ 07:19 ↓ 19:00 (11h 41m) - More info - Make Castle Rock time default - Add to favorite locations

UTC -6

Mountain Time (MT)
now 2 hours behind New York

From 1 November 2026: UTC -7 / Mountain Standard Time (MST)
The time in Castle Rock is normally two hours behind the time in New York, but because these time zones don't share the same start and end times for daylight saving time, the time in Castle Rock can for a short while be 1 or 3 hours behind the time in New York.
The IANA time zone identifier for Castle Rock is America/Denver.

Sunday March 8 2026

Latest change: Summer time started

Sunday November 1 2026

Next change: Winter time starts

Sunrise: 07:19
Sunset: 19:00
Day length: 11h 41m
Solar noon: 13:10
The current local time in Castle Rock is 70 minutes ahead of apparent solar time.