Current Time in Castle Rock, Colorado, USA
2:49:58 AM
02:49:58
MDT (Mountain Daylight Time) · UTC−06:00
America/Denver
Time zone details
Castle Rock is observing daylight saving time in 2026
Daylight in Castle Rock
Location facts
Place
- Country
- USA
- State
- Colorado
- County
- Douglas County
- Place type
- City or town
- Country currency
- US Dollar (USD)
Practical
- Languages
- English, Spanish, Hawaiian, French
- Dialing code
- +1
- Population
- 55,591
- Elevation
- 1,897 m
Geography
- Geographic coordinates
- 39° 22' N / 104° 51' W
Convert Castle Rock time
Compare Castle Rock with another city or time zone
Popular conversions (current offsets)
All times shown relative to Castle Rock local time
Clock changes in Castle Rock
2:00 AM MDT1:00 AM MST
Clocks move back 1 hour
2026
past
Daylight saving time starts
2:00 AM MST3:00 AM MDT
Clocks move forward 1 hour
upcoming
Daylight saving time ends
2:00 AM MDT1:00 AM MST
Clocks move back 1 hour
Future clock changes, 2027–2030
Sun & Moon details
Sun
- Sunrise
- Solar noon
- Sunset
- Daylight duration
- 12 hr 33 min2 min 32 sec shorter than the previous day
Twilight
- Civil twilight
- –
- Nautical twilight
- –
- Astronomical twilight
- –
View full Sun & Moon detailsHide full Sun & Moon details
Saturday, September 12, 2026
View Castle Rock on SavvyTime's time-zone map
Sun
- Sunrise
- Sunset
- Day length
- 12 hr 33 min2 min 32 sec shorter than the previous day
- Solar noon
- (54.6° altitude)
Civil twilight
- Dawn to dusk
- –
Additional twilight
- Nautical dawn to dusk
- –
- Astronomical dawn to dusk
- –
Moon
- Phase
- New Moon (3% illuminated)
- Moonrise
- Moonset
- Previous principal phase
- New Moon — Thursday, September 10, 2026 at
- Next principal phase
- First Quarter — Friday, September 18, 2026 at
Seven-day daylight outlook
| Local date | Sunrise | Sunset | Day length | Daily change |
|---|---|---|---|---|
| 12 hr 33 min | 2 min 32 sec shorter than the previous day | |||
| 12 hr 31 min | 2 min 32 sec shorter than the previous day | |||
| 12 hr 28 min | 2 min 32 sec shorter than the previous day | |||
| 12 hr 26 min | 2 min 32 sec shorter than the previous day | |||
| 12 hr 23 min | 2 min 33 sec shorter than the previous day | |||
| 12 hr 21 min | 2 min 32 sec shorter than the previous day | |||
| 12 hr 18 min | 2 min 33 sec shorter than the previous day |
Weather forecast for Castle Rock
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Plan around Castle Rock
Time context
Castle Rock follows the same clock and daylight-saving rules as Denver
Current time offsetUTC−06:00 (MDT)
View time differencesUpcoming public holidays in Colorado
- Frances Xavier Cabrini Day
- Veterans Day
- Thanksgiving Day
Nearby scheduled airports for Castle Rock, Colorado, USA
Denver International AirportDENLarge airport · Serves Denver56.4 km north-northeast
Source: OurAirports record · DEN / KDEN
About 56.4 km (35.0 mi) north-northeast of Castle Rock
Scheduled airline service in source data
Rocky Mountain Metropolitan AirportBJCMedium airport · Serves Denver63.7 km north-northwest
Source: OurAirports record · BJC / KBJC
About 63.7 km (39.6 mi) north-northwest of Castle Rock
Scheduled airline service in source data
City of Colorado Springs Municipal AirportCOSLarge airport · Serves Colorado Springs64.4 km south-southeast
Source: OurAirports record · COS / KCOS
About 64.4 km (40.0 mi) south-southeast of Castle Rock
Scheduled airline service in source data
Nearby places
Frequently asked questions
- What time zone is Castle Rock in?
- Castle Rock currently uses Mountain Daylight Time (MDT). Its IANA time zone is America/Denver.
- When is the next clock change in Castle Rock?
- Clocks in Castle Rock move backward 1 hour on Sunday, November 1, 2026 at 2:00 AM, changing from MDT (UTC−06:00) to MST (UTC−07:00)
- Is Castle Rock currently on daylight saving time?
- Castle Rock is observing daylight saving time in 2026
- What is the UTC offset in Castle Rock right now?
- Castle Rock is currently UTC−06:00