GAMT to BST Converter
No shared working hoursThu, Oct 15
Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
3:00 am03:00 GAMT (UTC-9), Oct 15, 2026 = 1:00 pm13:00 BST (UTC+1), Oct 15, 2026
GAMT is 10 hours behind BST.
GAMT and BST examples
These examples always use GAMT (UTC-9) and BST (UTC+1). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
GAMT is 10 hours behind BST.
How the time difference changes
For most of the year, GAMT is 10 hours behind BST. From Oct 25, 2026 to Mar 28, 2027, GAMT is 9 hours behind GMT.
For most of the year, working hours of 9:00 am to 6:00 pm in GAMT correspond to 7:00 pm to 4:00 am (next day) in BST. At other times of the year, working hours of 9:00 am to 6:00 pm in GAMT correspond to 6:00 pm to 3:00 am (next day) in GMT.For most of the year, working hours of 09:00 to 18:00 in GAMT correspond to 19:00 to 04:00 (next day) in BST. At other times of the year, working hours of 09:00 to 18:00 in GAMT correspond to 18:00 to 03:00 (next day) in GMT.
Compare GAMT time with BST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Gambier Time is 10 hours behind British Summer Time.
3:00 am03:00 in GAMT is 1:00 pm13:00 in BST
GAMT to BST call time
Best time for a conference call or a meeting is between 8am-9am08:00-09:00 in GAMT which corresponds to 6pm-7pm18:00-19:00 in BST. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
3:00 am03:00 Gambier Time (GAMT). Offset UTC -9:00 hours
1:00 pm13:00 British Summer Time (BST). Offset UTC +1:00 hour
3:00 am03:00 GAMT / 1:00 pm13:00 BST
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.
| GAMT | BST |
|---|---|
| 10:00am | |
| 11:00am | |
| 12:00pm | |
| 1:00pm | |
| 2:00pm | |
| 3:00pm | |
| 4:00pm | |
| 5:00pm | |
| 6:00pm | |
| 7:00pm | |
| 8:00pm | |
| 9:00pm | |
| 10:00pm | |
| 11:00pm | |
| 12:00am next day | |
| 1:00am next day | |
| 2:00am next day | |
| 3:00am next day | |
| 4:00am next day | |
| 5:00am next day | |
| 6:00am next day | |
| 7:00am next day | |
| 8:00am next day | |
| 9:00am next day | |
| 10:00 | |
| 11:00 | |
| 12:00 | |
| 13:00 | |
| 14:00 | |
| 15:00 | |
| 16:00 | |
| 17:00 | |
| 18:00 | |
| 19:00 | |
| 20:00 | |
| 21:00 | |
| 22:00 | |
| 23:00 | |
| 00:00 next day | |
| 01:00 next day | |
| 02:00 next day | |
| 03:00 next day | |
| 04:00 next day | |
| 05:00 next day | |
| 06:00 next day | |
| 07:00 next day | |
| 08:00 next day | |
| 09:00 next day |
Gambier Time
Offset: GAMT is 9 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: French Polynesia
Principal Cities: The largest city in the GAMT time zone is Rikitea in French Polynesia, with about 1,103 people.
Daylight Saving: Clocks in Gambier Time (GAMT) do not change for daylight saving time, so GAMT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
GAMT representations, usage and related time zones
- -09 - basic short
- -0900 - basic
- -09:00 - extended
- -0900 - sign character (-) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the west of the zero meridian.
- Victor - Military abbreviation for GAMT
- V - short form of 'Victor'
- AKST - Alaska Standard Time
- AHDT - Alaska-Hawaii Daylight Time
- HADT - Hawaii-Aleutian Daylight Time
- GAMT - Gambier Time
- HDT - Hawaii Daylight Time
- V - Victor Time Zone
British Summer Time
Offset: BST is 1 hour ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Britain (UK), Guernsey, Isle of Man, Jersey
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.
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.
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