BST to GFT Converter
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Quick answers
Selected conversion
1:00 pm13:00 BST (UTC+1), Oct 17, 2026 = 9:00 am09:00 GFT (UTC-3), Oct 17, 2026
BST is 4 hours ahead of GFT.
BST and GFT examples
These examples always use BST (UTC+1) and GFT (UTC-3). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
BST is 4 hours ahead of GFT.
How the time difference changes
For most of the year, BST is 4 hours ahead of GFT. From Oct 25, 2026 to Mar 28, 2027, GMT is 3 hours ahead of GFT.
For most of the year, working hours of 9:00 am to 6:00 pm in BST correspond to 5:00 am to 2:00 pm in GFT. At other times of the year, working hours of 9:00 am to 6:00 pm in GMT correspond to 6:00 am to 3:00 pm in GFT.For most of the year, working hours of 09:00 to 18:00 in BST correspond to 05:00 to 14:00 in GFT. At other times of the year, working hours of 09:00 to 18:00 in GMT correspond to 06:00 to 15:00 in GFT.
Compare BST time with GFT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
British Summer Time is 4 hours ahead of French Guiana Time.
1:00 pm13:00 in BST is 9:00 am09:00 in GFT
BST to GFT call time
Best time for a conference call or a meeting is between 1pm-6pm13:00-18:00 in BST which corresponds to 9am-2pm09:00-14:00 in GFT
1:00 pm13:00 British Summer Time (BST). Offset UTC +1:00 hour
9:00 am09:00 French Guiana Time (GFT). Offset UTC -3:00 hours
1:00 pm13:00 BST / 9:00 am09:00 GFT
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
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British Summer Time
Offset: BST is 1 hour ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Guernsey, Isle of Man, Jersey, United Kingdom
Principal Cities: The largest city in the BST time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Birmingham, Glasgow, Manchester, Sheffield.
Current time in the United Kingdom: UK time now
Today all shaded areas are on BST.
Daylight Saving: British Summer Time (BST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Greenwich Mean Time (GMT).
Start: British Summer Time (BST) started on Sunday, March 29, 2026 at 1:00 am01:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 2:00 am02:00. Daylight saving starts annually on the last Sunday of March.
End: British Summer Time (BST) ends on Sunday, October 25, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.
See United Kingdom daylight saving time and upcoming clock changes worldwide.
BST representations, usage and related time zones
- +01 - basic short
- +0100 - basic
- +01:00 - extended
- +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
- Alpha - Military abbreviation for BST
- A - short form of 'Alpha'
- Europe/Belfast
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- British Summer Time - UTC +1
- Bangladesh Standard Time - UTC +6
- Bougainville Standard Time - UTC +11
- BST - British Summer Time
- CET - Central European Time
- IST - Irish Standard Time
- WEST - Western European Summer Time
- A - Alpha Time Zone
- CET - Central European Time
- MEZ - Mitteleuropäische Zeit
- WAT - West Africa Time
- WST - Western Sahara Summer Time
- BMT - Biel Mean Time
French Guiana Time
Offset: GFT is 3 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: French Guiana
Principal Cities: The largest city in the GFT time zone is Cayenne in French Guiana, with about 61,550 people. Other major cities in this time zone include Saint-Laurent-du-Maroni, Kourou, Apatou, Grand-Santi.
Daylight Saving: Clocks in French Guiana Time (GFT) do not change for daylight saving time, so GFT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
GFT representations, usage and related time zones
- -03 - basic short
- -0300 - basic
- -03:00 - extended
- -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the west of the zero meridian.
- Papa - Military abbreviation for GFT
- P - short form of 'Papa'
- ADT - Atlantic Daylight Time
- PMT - Pierre & Miquelon Standard Time
- PMST - Pierre & Miquelon Standard Time
- AMST - Amazon Summer Time
- ART - Argentina Time
- BRT - Brasilia Time
- CLST - Chile Summer Time
- FKST - Falkland Islands Summer Time
- FKT - Falkland Islands Time
- GFT - French Guiana Time
- P - Papa Time Zone
- PYST - Paraguay Summer Time
- PYT - Paraguay Time
- SRT - Suriname Time
- UYT - Uruguay Time