Current Time in Guyancourt, Ile-de-France, France
12:27:40 AM
00:27:40
CEST (Central European Summer Time) · UTC+02:00
Europe/Paris
Time zone details
Guyancourt is observing daylight saving time in 2026
Daylight in Guyancourt
Location facts
Place
- Country
- France
- Administrative area
- Île-de-France
- District
- Yvelines
- Place type
- Populated place
- Country currency
- Euro (EUR)
Practical
- Languages
- French, Arpitan, Breton, Corsican, Catalan, Basque, Occitan
- Dialing code
- +33
- Population
- 31,989
- Elevation
- Approximately 161 m (DEM estimate)
Geography
- Geographic coordinates
- 48° 46' N / 2° 04' E
Convert Guyancourt time
Compare Guyancourt with another city or time zone
Popular conversions (current offsets)
All times shown relative to Guyancourt local time
Clock changes in Guyancourt
3:00 AM CEST2:00 AM CET
Clocks move back 1 hour
2026
past
Daylight saving time starts
2:00 AM CET3:00 AM CEST
Clocks move forward 1 hour
upcoming
Daylight saving time ends
3:00 AM CEST2:00 AM CET
Clocks move back 1 hour
Future clock changes, 2027–2030
Sun & Moon details
Sun
- Sunrise
- Solar noon
- Sunset
- Daylight duration
- 12 hr 47 min3 min 32 sec shorter than the previous day
Twilight
- Civil twilight
- –
- Nautical twilight
- –
- Astronomical twilight
- –
View full Sun & Moon detailsHide full Sun & Moon details
Saturday, September 12, 2026
View Guyancourt on SavvyTime's time-zone map
Sun
- Sunrise
- Sunset
- Day length
- 12 hr 47 min3 min 32 sec shorter than the previous day
- Solar noon
- (45.3° altitude)
Civil twilight
- Dawn to dusk
- –
Additional twilight
- Nautical dawn to dusk
- –
- Astronomical dawn to dusk
- –
Moon
- Phase
- New Moon (2% illuminated)
- Moonrise
- Moonset
- Previous principal phase
- New Moon — Friday, September 11, 2026 at
- Next principal phase
- First Quarter — Friday, September 18, 2026 at
Seven-day daylight outlook
| Local date | Sunrise | Sunset | Day length | Daily change |
|---|---|---|---|---|
| 12 hr 47 min | 3 min 32 sec shorter than the previous day | |||
| 12 hr 44 min | 3 min 31 sec shorter than the previous day | |||
| 12 hr 40 min | 3 min 32 sec shorter than the previous day | |||
| 12 hr 36 min | 3 min 32 sec shorter than the previous day | |||
| 12 hr 33 min | 3 min 33 sec shorter than the previous day | |||
| 12 hr 29 min | 3 min 32 sec shorter than the previous day | |||
| 12 hr 26 min | 3 min 33 sec shorter than the previous day |
Weather forecast for Guyancourt
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Plan around Guyancourt
Time context
Guyancourt follows the same clock and daylight-saving rules as Paris
Current time offsetUTC+02:00 (CEST)
View time differencesUpcoming national public holidays in France
- All Saints' Day
- Armistice Day
- Christmas Day
Nearby scheduled airports for Guyancourt, Ile-de-France, France
Paris-Orly AirportORYLarge airport · Serves Paris (Orly, Val-de-Marne)21.5 km east-southeast
Source: OurAirports record · ORY / LFPO
About 21.5 km (13.4 mi) east-southeast of Guyancourt
Scheduled airline service in source data
Paris-Le Bourget International AirportLBGLarge airport · Serves Paris33.8 km northeast
Source: OurAirports record · LBG / LFPB
About 33.8 km (21.0 mi) northeast of Guyancourt
Scheduled airline service in source data
Charles de Gaulle International AirportCDGLarge airport · Serves Paris (Roissy-en-France, Val-d'Oise)43.8 km northeast
Source: OurAirports record · CDG / LFPG
About 43.8 km (27.2 mi) northeast of Guyancourt
Scheduled airline service in source data
Nearby places
Frequently asked questions
- What time zone is Guyancourt in?
- Guyancourt currently uses Central European Summer Time (CEST). Its IANA time zone is Europe/Paris.
- When is the next clock change in Guyancourt?
- Clocks in Guyancourt move backward 1 hour on Sunday, October 25, 2026 at 3:00 AM, changing from CEST (UTC+02:00) to CET (UTC+01:00)
- Is Guyancourt currently on daylight saving time?
- Guyancourt is observing daylight saving time in 2026
- What is the UTC offset in Guyancourt right now?
- Guyancourt is currently UTC+02:00