Autumn Equinox in Guyancourt
France — September 23, 2026
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Days
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Hours
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Minutes
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until Autumn Equinox on September 23, 2026
58% elapsed
155 days remaining
Guyancourt
14:18:56
Europe/Paris
GMT / UTC
12:18:56
Etc/UTC
Mecca
15:18:56
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.
Guyancourt Quick Facts
- Country
- 🇫🇷 France
- Timezone
- Europe/Paris
- Population
- 31,989
- Coordinates
- 48.7733, 2.0739
Sun Times Today in Guyancourt
Sunrise
06:50
Solar Noon
13:50
Sunset
20:50
Golden Hour
20:08
Daylight
14h 0m
Local time
Prayer Times Today in Guyancourt
| Prayer | Time (Local) |
|---|---|
| Fajr | 04:47 |
| Sunrise | 06:50 |
| Dhuhr | 13:50 |
| Asr | 17:42 |
| Maghrib | 20:50 |
| Isha | 22:45 |
Based on MWL calculation method. Local time.
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Frequently Asked Questions
- When is Autumn Equinox in Guyancourt?
- Autumn Equinox in Guyancourt falls on Wednesday, September 23, 2026.
- What timezone is Guyancourt in?
- Guyancourt is in the Europe/Paris timezone.