First Day of Winter in Castle Rock
United States — December 1, 2026
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until First Day of Winter on December 1, 2026
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Castle Rock
17:45:18
America/Denver
GMT / UTC
23:45:18
Etc/UTC
Mecca
02:45:18
UTC+3
About First Day of Winter
Meteorological start of winter on December 1, marking the beginning of the coldest season.
Castle Rock Quick Facts
- Country
- 🇺🇸 United States
- Timezone
- America/Denver
- Population
- 55,591
- Coordinates
- 39.3722, -104.8561
Sun Times Today in Castle Rock
Sunrise
06:11
Solar Noon
12:57
Sunset
19:44
Golden Hour
19:07
Daylight
13h 32m
Local time
Prayer Times Today in Castle Rock
| Prayer | Time (Local) |
|---|---|
| Fajr | 04:32 |
| Sunrise | 06:11 |
| Dhuhr | 12:57 |
| Asr | 16:44 |
| Maghrib | 19:44 |
| Isha | 21:16 |
Based on MWL calculation method. Local time.
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Frequently Asked Questions
- When is First Day of Winter in Castle Rock?
- First Day of Winter in Castle Rock falls on Tuesday, December 1, 2026.
- What timezone is Castle Rock in?
- Castle Rock is in the America/Denver timezone.