French Guiana to London time converter

London is 4 hours ahead of French Guiana. When it is 9:00 AM in French Guiana, it is 1:00 PM in London.

French Guiana UTC-3

Wednesday, October 21, 2026

London BST

Wednesday, October 21, 2026

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

French Guiana to London conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 21, 2026 – Oct 24, 2026: +4h
  • Oct 24, 2026 – Mar 27, 2027: +3h
  • Mar 27, 2027 – Oct 21, 2027: +4h

More conversions

London to French GuianaFrench Guiana to New YorkFrench Guiana to Los AngelesFrench Guiana to ChicagoFrench Guiana to TorontoFrench Guiana to São PauloFrench Guiana to ParisFrench Guiana to BerlinFrench Guiana to MoscowFrench Guiana to DubaiFrench Guiana to New DelhiFrench Guiana to BangkokFrench Guiana to Singapore
New York to LondonLos Angeles to LondonChicago to LondonToronto to LondonSão Paulo to LondonParis to LondonBerlin to LondonMoscow to LondonDubai to LondonNew Delhi to LondonBangkok to LondonSingapore to London

Questions and answers

What is the time difference between French Guiana and London?

London is 4 hours ahead of French Guiana.

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

When it is 9:00 AM in French Guiana, it is 1:00 PM in London.

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

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

Does the time difference between French Guiana and London change?

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