What time is it in Castle Rock right now?

The clock at the top of this page shows the current local time in Castle Rock, United States, updated every second from your device's clock and the IANA time zone rules for America/Denver. Castle Rock is 6 hours behind UTC right now.

What time zone is Castle Rock in?

Castle Rock uses MDT (Mountain Time). Its IANA time zone identifier is America/Denver, and the current UTC offset is UTC−6.

Does Castle Rock observe daylight saving time?

Yes. Clocks last changed on Sun, Mar 8, 2026. The next change is on Sun, Nov 1, 2026, when clocks go back 1 hour.

How do I schedule a meeting with someone in Castle Rock?

Open the time zone converter for Castle Rock to see what a given time there is for you, or use the meeting planner to find the hours when both of you are at work. A Cal.com booking link does the conversion for your guests automatically: they see your availability in their own time zone and pick a slot that works.

Current local time in Castle Rock, Colorado, United States

Castle Rock is on MDT (Mountain Time), UTC−6. Clocks go back 1 hour on Sun, Nov 1, 2026.

Castle Rock, United States

5:54 AM:34MDT

Tuesday, October 27, 2026

UTC−6

Country: United States
Region: Colorado
Lat/Long: 39°22'N / 104°51'W
Elevation: 1,897 m
Population: 55,591
Currency: Dollar (USD)
Languages: English, Spanish, Hawaiian, French
Dialling code: +1

Time zone in Castle Rock

Time zone
MDT
Mountain Time
UTC offset
UTC−6
6 hours behind UTC
DST started
Sun, Mar 8, 2026
Clocks went forward 1 hour
DST ends
Sun, Nov 1, 2026
Clocks go back 1 hour at 2:00 AM

Castle Rock keeps the time of the IANA zone America/Denver, one of 14 time zones in use in United States. Clocks go back 1 hour on Sun, Nov 1, 2026.

About MDT Time zone converter for Castle Rock Meeting planner for Castle Rock

Sunrise and sunset in Castle Rock today

Sunrise
7:22 AM
Sunset
6:04 PM
Day length
10 hours 42 minutes
Date
Tue, Oct 27, 2026

Times are local to Castle Rock for Tue, Oct 27, 2026, computed for 39°22'N / 104°51'W.

Time difference between Castle Rock and other cities

The current local time in major cities around the world and how far each is ahead of or behind Castle Rock. Differences change when either side moves its clocks.

Current time in world cities compared to Castle Rock
City	Local time	Compared to Castle Rock
New YorkUnited States	Tue 7:54 AM	+2h (ahead)
Los AngelesUnited States	Tue 4:54 AM	−1h (behind)
ChicagoUnited States	Tue 6:54 AM	+1h (ahead)
TorontoCanada	Tue 7:54 AM	+2h (ahead)
Mexico CityMexico	Tue 5:54 AM	Same time
São PauloBrazil	Tue 8:54 AM	+3h (ahead)
LondonUnited Kingdom	Tue 11:54 AM	+6h (ahead)
ParisFrance	Tue 12:54 PM	+7h (ahead)
BerlinGermany	Tue 12:54 PM	+7h (ahead)
MadridSpain	Tue 12:54 PM	+7h (ahead)
JohannesburgSouth Africa	Tue 1:54 PM	+8h (ahead)
DubaiUnited Arab Emirates	Tue 3:54 PM	+10h (ahead)
MumbaiIndia	Tue 5:24 PM	+11h 30m (ahead)
SingaporeSingapore	Tue 7:54 PM	+14h (ahead)
ShanghaiChina	Tue 7:54 PM	+14h (ahead)
TokyoJapan	Tue 8:54 PM	+15h (ahead)
SydneyAustralia	Tue 10:54 PM	+17h (ahead)
AucklandNew Zealand	Wed 12:54 AM	+19h (ahead)

Other cities near Castle Rock

All 3,122 cities in United States

Frequently asked questions

Place data from GeoNames (CC BY 4.0). Times follow the IANA time zone database; sunrise and sunset are computed for the city's coordinates.