GMT to GFT Time Converter

Convert Greenwich Mean Time (GMT) to French Guiana Time (GFT). Both time zones are shown live below; current offset between them is 4 hours behind.

London · Greenwich Mean Time
03:05:48
Wednesday, May 13, 2026
GMT+1 · UTC+01:00
Cayenne · French Guiana Time
23:05:48
Tuesday, May 12, 2026
GMT-3 · UTC-03:00

Convert a specific time

From: GMT (London)
To: GFT (Cayenne)
--:--

Daylight Saving status right now

GMT (Greenwich Mean Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-10-25
Offset shift
UTC+01:00 → UTC+00:00
GFT (French Guiana Time)
Observes DST
No

Heads up: GMT observes DST while GFT does not. The 4-hour difference shown above will shift by one hour when GMT starts or ends DST.

When can GMT and GFT meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
GMT
GFT
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in London (GMT). Each row shows the local working-hours state in that zone for the same moment in time.
4 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 13:00–16:00 GMT (09:00–12:00 GFT).

Hour-by-hour GMT to GFT conversion table

GMT time (London)GFT time (Cayenne)Status
00:00 Wed20:00 TueOff-hours both sides
01:00 Wed21:00 TueOff-hours both sides
02:00 Wed22:00 TueOff-hours both sides
03:00 Wed23:00 TueOff-hours both sides
04:00 Wed00:00 WedOff-hours both sides
05:00 Wed01:00 WedOff-hours both sides
06:00 Wed02:00 WedOff-hours both sides
07:00 Wed03:00 WedOff-hours both sides
08:00 Wed04:00 WedOff-hours both sides
09:00 Wed05:00 WedGMT working
10:00 Wed06:00 WedGMT working
11:00 Wed07:00 WedGMT working
12:00 Wed08:00 WedGMT working
13:00 Wed09:00 WedBoth at work
14:00 Wed10:00 WedBoth at work
15:00 Wed11:00 WedBoth at work
16:00 Wed12:00 WedBoth at work
17:00 Wed13:00 WedGFT working
18:00 Wed14:00 WedGFT working
19:00 Wed15:00 WedGFT working
20:00 Wed16:00 WedGFT working
21:00 Wed17:00 WedOff-hours both sides
22:00 Wed18:00 WedOff-hours both sides
23:00 Wed19:00 WedOff-hours both sides

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Greenwich Mean Time (GMT)
IANA identifier
Europe/London
Current UTC offset
UTC+01:00
Current abbreviation
GMT+1
Major cities in this zone
LondonManchesterEdinburghBirmingham
French Guiana Time (GFT)
IANA identifier
America/Cayenne
Current UTC offset
UTC-03:00
Current abbreviation
GMT-3
Major cities in this zone
Cayenne

Sun today in London and Cayenne

London
Sunrise
05:13
Sunset
20:43
Solar noon
12:58
Daylight
15h 29m

Related converters

GFT to GMT (reverse)GMT to ESTGMT to PSTGMT to UTCGMT to CETGMT to ISTEST to GFTPST to GFTUTC to GFTCET to GFTIST to GFT
Looking for local time? See time in London or time in Cayenne.

Frequently asked questions

What is the time difference between GMT and GFT right now?+
GFT (French Guiana Time) is currently 4 hours behind GMT (Greenwich Mean Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does GMT or GFT observe daylight saving time?+
GMT: observes daylight saving time. GFT: does not observe daylight saving time.
When is the best time to schedule a meeting between GMT and GFT?+
The strongest overlap is 13:00–16:00 GMT (09:00–12:00 GFT), giving 4 hours when both sides are within standard 9am-5pm working hours.
What time is it in Cayenne when it is 12:00 noon in London?+
When it is 12:00 Wed in London (GMT), it is 08:00 Wed in Cayenne (GFT).
Which IANA time zone identifiers are used for GMT and GFT?+
GMT maps to "Europe/London" in the IANA database. GFT maps to "America/Cayenne". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is London ahead of or behind Cayenne?+
Whether London (GMT) is ahead of or behind Cayenne (GFT) depends on the current UTC offsets. Right now GFT is 4 hours behind GMT. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for GMT and GFT?+
GMT is UTC+01:00 (GMT+1) and GFT is UTC-03:00 (GMT-3). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both GMT and GFT?+
Yes. There are 4 hours of overlap during standard 9am-5pm working hours, with the strongest window at 13:00–16:00 GMT.