London to French Guiana time converter

French Guiana is 4 hours behind London. When it is 9:00 AM in London, it is 5:00 AM in French Guiana.

London BST

Wednesday, October 21, 2026

French Guiana UTC-3

Wednesday, October 21, 2026

London
United Kingdom
Wed, Oct 21
BSTUTC+1
French Guiana
Wed, Oct 21
UTC-3-4h
Finding your time zone…
Shared working hours (9:00–18:00)

London to French Guiana conversion table

Every hour of today in London and the matching time in French Guiana. Light rows are typical working hours (9:00–18:00).

LondonFrench Guiana
12:00 AM8:00 PM−1 day
1:00 AM9:00 PM−1 day
2:00 AM10:00 PM−1 day
3:00 AM11:00 PM−1 day
4:00 AM12:00 AM
5:00 AM1:00 AM
6:00 AM2:00 AM
7:00 AM3:00 AM
8:00 AM4:00 AM
9:00 AM5:00 AM
10:00 AM6:00 AM
11:00 AM7:00 AM
12:00 PM8:00 AM
1:00 PM9:00 AM
2:00 PM10:00 AM
3:00 PM11:00 AM
4:00 PM12:00 PM
5:00 PM1:00 PM
6:00 PM2:00 PM
7:00 PM3:00 PM
8:00 PM4:00 PM
9:00 PM5:00 PM
10:00 PM6:00 PM
11:00 PM7:00 PM

Best time to call or meet

Both sides are at work from 1:00 PM – 6:00 PM in London (9:00 AM – 2:00 PM in French Guiana).

Daylight saving time and the difference

The difference changes during the year because London and French Guiana switch clocks on different dates:

  • Oct 21, 2026 – Oct 25, 2026: -4h
  • Oct 25, 2026 – Mar 28, 2027: -3h
  • Mar 28, 2027 – Oct 21, 2027: -4h

More conversions

French Guiana to LondonLondon to New YorkLondon to Los AngelesLondon to ChicagoLondon to TorontoLondon to São PauloLondon to ParisLondon to BerlinLondon to MoscowLondon to DubaiLondon to New DelhiLondon to BangkokLondon to Singapore
New York to French GuianaLos Angeles to French GuianaChicago to French GuianaToronto to French GuianaSão Paulo to French GuianaParis to French GuianaBerlin to French GuianaMoscow to French GuianaDubai to French GuianaNew Delhi to French GuianaBangkok to French GuianaSingapore to French Guiana

Questions and answers

What is the time difference between London and French Guiana?

French Guiana is 4 hours behind London.

What time is it in French Guiana when it is 9 AM in London?

When it is 9:00 AM in London, it is 5:00 AM in French Guiana.

When is the best time to call French Guiana from London?

Both sides are at work from 1:00 PM – 6:00 PM in London (9:00 AM – 2:00 PM in French Guiana).

Does the time difference between London and French Guiana change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.