UTC Offset
UTC-06:00
Current time in Castle Rock, United States
Clocks shift twice a year — UTC-07:00 in winter, UTC-06:00 in summer.
Current time in Castle Rock, United States
22:15 21
IANA time zone
America/Denver
Daylight saving
DST in effect
MST / MDT
Next DST change
November 1
backward -1h
Quick answer
The current local time in Castle Rock, United States is 22:15 (MDT), which is UTC-06:00.
Castle Rock is in United States, located at 39.372, -104.856.
The current time zone for Castle Rock is MDT, whose offset is UTC-06:00 from UTC. The IANA identifier is America/Denver.
The next daylight saving transition is November 1, 2026, when clocks move backward by 1 hour.
Timezone in Castle Rock
Mountain Standard Time (MST)
IANA time zone:
America/Denver During winter
MST
Mountain Standard Time
UTC-07:00
Currently active
MDT
Mountain Daylight Time
UTC-06:00
Daylight in Castle Rock today
View full sunrise & sunset page Sunrise
Sunset
Day length
14h 56m
Castle Rock, United States
- Country
- United States
- ISO code
- US
- Coordinates
- 39.3722° N, 104.8561° W
- IANA zone
- America/Denver
- Population
- 55,591
- Elevation
- 1,897 m
Your local time Detecting your timezone…
Castle Rock on the map · time zone
Castle Rock, United States
- Local time22:15
- UTC offsetUTC-06:00
- Time zoneAmerica/Denver
- StatusDaylight saving
- Coordinates
- 39.37°, -104.86°
World clock
Compared with Castle Rock
Daylight saving time in Castle Rock
Clocks shift twice a year — UTC-07:00 in winter, UTC-06:00 in summer.
Next DST change November 1, 2026
Direction backward
Amount 1h
DST schedule — recent & upcoming years
Spring-forward and fall-back dates in Castle Rock.
- 2025DST start (spring forward)Mar 9, 2025,DST end (fall back)Nov 2, 2025,
- 2026DST start (spring forward)Mar 8, 2026,DST end (fall back)Nov 1, 2026,
- 2027DST start (spring forward)Mar 14, 2027,DST end (fall back)Nov 7, 2027,
- 2028DST start (spring forward)Mar 12, 2028,DST end (fall back)Nov 5, 2028,
| Year | DST start (spring forward) | DST end (fall back) |
|---|---|---|
| 2025 | Mar 9, 2025, | Nov 2, 2025, |
| 2026 | Mar 8, 2026, | Nov 1, 2026, |
| 2027 | Mar 14, 2027, | Nov 7, 2027, |
| 2028 | Mar 12, 2028, | Nov 5, 2028, |
Hour-by-hour conversion
When it's the given hour in Castle Rock, here are the local times elsewhere.
| Castle Rock | New York | Mexico City | São Paulo | London | Paris | Berlin | Dubai | Mumbai |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 02:00 | 00:00 | 03:00 | 07:00 | 08:00 | 08:00 | 10:00 | 11:30 |
| 01:00 | 03:00 | 01:00 | 04:00 | 08:00 | 09:00 | 09:00 | 11:00 | 12:30 |
| 02:00 | 04:00 | 02:00 | 05:00 | 09:00 | 10:00 | 10:00 | 12:00 | 13:30 |
| 03:00 | 05:00 | 03:00 | 06:00 | 10:00 | 11:00 | 11:00 | 13:00 | 14:30 |
| 04:00 | 06:00 | 04:00 | 07:00 | 11:00 | 12:00 | 12:00 | 14:00 | 15:30 |
| 05:00 | 07:00 | 05:00 | 08:00 | 12:00 | 13:00 | 13:00 | 15:00 | 16:30 |
| 06:00 | 08:00 | 06:00 | 09:00 | 13:00 | 14:00 | 14:00 | 16:00 | 17:30 |
| 07:00 | 09:00 | 07:00 | 10:00 | 14:00 | 15:00 | 15:00 | 17:00 | 18:30 |
| 08:00 | 10:00 | 08:00 | 11:00 | 15:00 | 16:00 | 16:00 | 18:00 | 19:30 |
| 09:00 | 11:00 | 09:00 | 12:00 | 16:00 | 17:00 | 17:00 | 19:00 | 20:30 |
| 10:00 | 12:00 | 10:00 | 13:00 | 17:00 | 18:00 | 18:00 | 20:00 | 21:30 |
| 11:00 | 13:00 | 11:00 | 14:00 | 18:00 | 19:00 | 19:00 | 21:00 | 22:30 |
| 12:00 | 14:00 | 12:00 | 15:00 | 19:00 | 20:00 | 20:00 | 22:00 | 23:30 |
| 13:00 | 15:00 | 13:00 | 16:00 | 20:00 | 21:00 | 21:00 | 23:00 | 00:30 +1 |
| 14:00 | 16:00 | 14:00 | 17:00 | 21:00 | 22:00 | 22:00 | 00:00 +1 | 01:30 +1 |
| 15:00 | 17:00 | 15:00 | 18:00 | 22:00 | 23:00 | 23:00 | 01:00 +1 | 02:30 +1 |
| 16:00 | 18:00 | 16:00 | 19:00 | 23:00 | 00:00 +1 | 00:00 +1 | 02:00 +1 | 03:30 +1 |
| 17:00 | 19:00 | 17:00 | 20:00 | 00:00 +1 | 01:00 +1 | 01:00 +1 | 03:00 +1 | 04:30 +1 |
| 18:00 | 20:00 | 18:00 | 21:00 | 01:00 +1 | 02:00 +1 | 02:00 +1 | 04:00 +1 | 05:30 +1 |
| 19:00 | 21:00 | 19:00 | 22:00 | 02:00 +1 | 03:00 +1 | 03:00 +1 | 05:00 +1 | 06:30 +1 |
| 20:00 | 22:00 | 20:00 | 23:00 | 03:00 +1 | 04:00 +1 | 04:00 +1 | 06:00 +1 | 07:30 +1 |
| 21:00 | 23:00 | 21:00 | 00:00 +1 | 04:00 +1 | 05:00 +1 | 05:00 +1 | 07:00 +1 | 08:30 +1 |
| 22:00 | 00:00 +1 | 22:00 | 01:00 +1 | 05:00 +1 | 06:00 +1 | 06:00 +1 | 08:00 +1 | 09:30 +1 |
| 23:00 | 01:00 +1 | 23:00 | 02:00 +1 | 06:00 +1 | 07:00 +1 | 07:00 +1 | 09:00 +1 | 10:30 +1 |
Frequently Asked Questions
The current local time in Castle Rock, United States is 22:15 (MDT). Castle Rock uses the America/Denver time zone, which is UTC-06:00.
Castle Rock uses MST (UTC-07:00) in winter and switches to MDT (UTC-06:00) during daylight saving time. The IANA identifier is America/Denver.
Yes. The next daylight saving transition in Castle Rock is on November 1, 2026. Clocks will move backward by 1 hour.
The IANA / Olson time zone database identifier for Castle Rock is America/Denver. This is the identifier used by operating systems, programming languages, and APIs to look up the correct local time.
It is currently PM in Castle Rock. The local time is 22:15 (MDT).
Castle Rock is UTC-07:00 from UTC during standard time and UTC-06:00 during daylight saving time. It is currently UTC-06:00.
The next daylight saving transition in Castle Rock is on November 1, 2026. Clocks move backward by 1 hour at 01:00 local time.
Castle Rock is currently 2 hours behind New York.