What time zone is Chalfont St Giles in?

Chalfont St Giles uses Greenwich Mean Time (GMT, UTC+0) in winter and British Summer Time (BST, UTC+1) in summer. Its IANA time zone is Europe/London.

When is the next clock change in Chalfont St Giles?

Clocks in Chalfont St Giles move forward 1 hour on Sunday, March 28, 2027 at 1:00 AM, changing from GMT (UTC) to BST (UTC+01:00)

Does Chalfont St Giles observe daylight saving time?

Yes. Chalfont St Giles observes daylight saving time: BST (UTC+1) in summer and GMT (UTC+0) in winter.

What is the UTC offset of Chalfont St Giles?

Chalfont St Giles is UTC+0 in winter and UTC+1 in summer

Current Time in Chalfont St Giles, Buckinghamshire, England, United Kingdom

4:21:05 AM

04:21:05

Monday, November 2, 2026

GMT (Greenwich Mean Time) · UTC

Europe/London

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Time zone details

Chalfont St Giles is currently on standard time; daylight saving time is observed in 2026

Daylight in Chalfont St Giles

Sunrise6:57 AMSolar noon11:45 AMSunset4:33 PM

Next clock changeMar 28, 2027 · Clocks move forward 1 hour · in 145 daysUpcomingView details Weather nowLoading current forecast…Forecast details

Location facts

Place

Country: United Kingdom
Administrative area: England
District: Buckinghamshire
Place type: Populated place
Country currency: British Pound (GBP)

Practical

Country languages: English, Welsh, Scottish Gaelic
Dialing code: +44
Population: 7,957
Elevation: Approximately 75 m (DEM estimate)

Geography

Geographic coordinates: 51° 37' N / 0° 34' W

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Clock changes in Chalfont St Giles

Next clock change

Upcoming

Sunday, March 28, 2027

1:00 AM GMT2:00 AM BST

Clocks move forward 1 hour

Sunday, March 29, 2026past
Daylight saving time starts
1:00 AM GMT2:00 AM BST
Clocks move forward 1 hour
Sunday, October 25, 2026past
Daylight saving time ends
2:00 AM BST1:00 AM GMT
Clocks move back 1 hour

Future clock changes, 2027–2030

United Kingdom daylight saving time Clock changes worldwide

Sun & Moon details

Sunrise: 6:57 AM
Solar noon: 11:45 AM
Sunset: 4:33 PM
Daylight duration: 9 hr 35 min3 min 35 sec shorter than the previous day

Civil twilight: 6:22 AM – 5:08 PM
Nautical twilight: 5:42 AM – 5:48 PM
Astronomical twilight: 5:03 AM – 6:26 PM

Third QuarterMoon illumination43%

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Monday, November 2, 2026

View Chalfont St Giles on SavvyTime's time-zone map

Sun

Sunrise: 6:57 AM (southeast, 113.1°)
Sunset: 4:33 PM (southwest, 246.7°)
Day length: 9 hr 35 min3 min 35 sec shorter than the previous day
Solar noon: 11:45 AM (23.6° altitude)

Civil twilight

Dawn to dusk: 6:22 AM – 5:08 PM

Additional twilight

Nautical dawn to dusk: 5:42 AM – 5:48 PM
Astronomical dawn to dusk: 5:03 AM – 6:26 PM

Moon

Phase: Third Quarter (43% illuminated)
Moonrise: 11:54 PM (east, 68.5°)
Moonset: 2:04 PM (northwest, 295.4°)
Previous principal phase: Third Quarter — Sunday, November 1, 2026 at 8:28 PM
Next principal phase: New Moon — Monday, November 9, 2026 at 7:02 AM

Seven-day daylight outlook

Sunrise, sunset, and daylight for seven local dates
Local date	Sunrise	Sunset	Day length	Daily change
Monday, November 2	6:57 AM	4:33 PM	9 hr 35 min	3 min 35 sec shorter than the previous day
Tuesday, November 3	6:59 AM	4:31 PM	9 hr 32 min	3 min 32 sec shorter than the previous day
Wednesday, November 4	7:01 AM	4:29 PM	9 hr 28 min	3 min 32 sec shorter than the previous day
Thursday, November 5	7:03 AM	4:27 PM	9 hr 25 min	3 min 29 sec shorter than the previous day
Friday, November 6	7:04 AM	4:26 PM	9 hr 21 min	3 min 28 sec shorter than the previous day
Saturday, November 7	7:06 AM	4:24 PM	9 hr 18 min	3 min 26 sec shorter than the previous day
Sunday, November 8	7:08 AM	4:22 PM	9 hr 14 min	3 min 24 sec shorter than the previous day

Weather forecast for Chalfont St Giles

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Plan around Chalfont St Giles

Upcoming public holidays in England

Fri, Dec 25, 2026Christmas Day
Sat, Dec 26, 2026Boxing Day
Mon, Dec 28, 2026Boxing Day (substitute day)

Nearby places

Browse places in United Kingdom

Frequently asked questions

What time zone is Chalfont St Giles in?: Chalfont St Giles uses Greenwich Mean Time (GMT, UTC+0) in winter and British Summer Time (BST, UTC+1) in summer. Its IANA time zone is Europe/London.
When is the next clock change in Chalfont St Giles?: Clocks in Chalfont St Giles move forward 1 hour on Sunday, March 28, 2027 at 1:00 AM, changing from GMT (UTC) to BST (UTC+01:00)
Does Chalfont St Giles observe daylight saving time?: Yes. Chalfont St Giles observes daylight saving time: BST (UTC+1) in summer and GMT (UTC+0) in winter.
What is the UTC offset of Chalfont St Giles?: Chalfont St Giles is UTC+0 in winter and UTC+1 in summer