Autumn Equinox in Boulder
United States — September 23, 2026
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until Autumn Equinox on September 23, 2026
58% elapsed
155 days remaining
Boulder
21:38:00
America/Denver
GMT / UTC
03:38:00
Etc/UTC
Mecca
06:38:00
UTC+3
About Autumn Equinox
The moment when day and night are nearly equal in length, marking the start of autumn around September 22.
Based on solar calculation. Actual date may vary by local authority or moon sighting.
Boulder Quick Facts
- Country
- 🇺🇸 United States
- Timezone
- America/Denver
- Population
- 106,803
- Coordinates
- 40.015, -105.2706
Sun Times Today in Boulder
Sunrise
06:14
Solar Noon
12:59
Sunset
19:44
Golden Hour
19:08
Daylight
13h 29m
Local time
Prayer Times Today in Boulder
| Prayer | Time (Local) |
|---|---|
| Fajr | 04:35 |
| Sunrise | 06:14 |
| Dhuhr | 12:59 |
| Asr | 16:45 |
| Maghrib | 19:44 |
| Isha | 21:17 |
Based on MWL calculation method. Local time.
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Frequently Asked Questions
- When is Autumn Equinox in Boulder?
- Autumn Equinox in Boulder falls on Wednesday, September 23, 2026.
- What timezone is Boulder in?
- Boulder is in the America/Denver timezone.