Autumn Equinox in San Mateo
United States — September 23, 2026
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Days
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Hours
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Minutes
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Seconds
until Autumn Equinox on September 23, 2026
78% elapsed
82 days remaining
San Mateo
01:22:06
America/Los_Angeles
GMT / UTC
08:22:06
Etc/UTC
Mecca
11:22:06
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.
San Mateo Quick Facts
- Country
- 🇺🇸 United States
- Timezone
- America/Los_Angeles
- Population
- 103,536
- Coordinates
- 37.563, -122.3255
Sun Times Today in San Mateo
Sunrise
05:52
Solar Noon
13:13
Sunset
20:34
Golden Hour
19:55
Daylight
14h 41m
Local time
Prayer Times Today in San Mateo
| Prayer | Time (Local) |
|---|---|
| Fajr | 03:59 |
| Sunrise | 05:52 |
| Dhuhr | 13:13 |
| Asr | 17:06 |
| Maghrib | 20:34 |
| Isha | 22:19 |
Based on MWL calculation method. Local time.
Typical Weather
High
20.0°C
Low
14.6°C
Condition
Cloudy
Historical average for this date. Not a forecast.
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Frequently Asked Questions
- When is Autumn Equinox in San Mateo?
- Autumn Equinox in San Mateo falls on Wednesday, September 23, 2026.
- What timezone is San Mateo in?
- San Mateo is in the America/Los_Angeles timezone.