BST to GST Converter
Quick answers
Selected conversion
1:00 pm13:00 BST (UTC+1), Oct 3, 2026 = 4:00 pm16:00 GST (UTC+4), Oct 3, 2026
BST is 3 hours behind GST.
BST and GST examples
These examples always use BST (UTC+1) and GST (UTC+4). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
BST is 3 hours behind GST.
How the time difference changes
For most of the year, BST is 3 hours behind GST. At other times of the year, GMT is 4 hours behind GST.
For most of the year, working hours of 9:00 am to 5:00 pm in BST correspond to 12:00 pm to 8:00 pm in GST. At other times of the year, working hours of 9:00 am to 5:00 pm in GMT correspond to 1:00 pm to 9:00 pm in GST.For most of the year, working hours of 09:00 to 17:00 in BST correspond to 12:00 to 20:00 in GST. At other times of the year, working hours of 09:00 to 17:00 in GMT correspond to 13:00 to 21:00 in GST.
Compare BST time with GST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
British Summer Time is 3 hours behind Gulf Standard Time.
1:00 pm13:00 in BST is 4:00 pm16:00 in GST
BST to GST call time
Best time for a conference call or a meeting is between 9am-2pm09:00-14:00 in BST which corresponds to 12pm-5pm12:00-17:00 in GST
1:00 pm13:00 British Summer Time (BST). Offset UTC +1:00 hour
4:00 pm16:00 Gulf Standard Time (GST). Offset UTC +4:00 hours
1:00 pm13:00 BST / 4:00 pm16:00 GST
| BST | GST |
|---|---|
| 12:00am | 3:00am |
| 1:00am | 4:00am |
| 2:00am | 5:00am |
| 3:00am | 6:00am |
| 4:00am | 7:00am |
| 5:00am | 8:00am |
| 6:00am | 9:00am |
| 7:00am | 10:00am |
| 8:00am | 11:00am |
| 9:00am | 12:00pm |
| 10:00am | 1:00pm |
| 11:00am | 2:00pm |
| 12:00pm | 3:00pm |
| 1:00pm | 4:00pm |
| 2:00pm | 5:00pm |
| 3:00pm | 6:00pm |
| 4:00pm | 7:00pm |
| 5:00pm | 8:00pm |
| 6:00pm | 9:00pm |
| 7:00pm | 10:00pm |
| 8:00pm | 11:00pm |
| 9:00pm | 12:00am |
| 10:00pm | 1:00am |
| 11:00pm | 2:00am |
| 00:00 | 03:00 |
| 01:00 | 04:00 |
| 02:00 | 05:00 |
| 03:00 | 06:00 |
| 04:00 | 07:00 |
| 05:00 | 08:00 |
| 06:00 | 09:00 |
| 07:00 | 10:00 |
| 08:00 | 11:00 |
| 09:00 | 12:00 |
| 10:00 | 13:00 |
| 11:00 | 14:00 |
| 12:00 | 15:00 |
| 13:00 | 16:00 |
| 14:00 | 17:00 |
| 15:00 | 18:00 |
| 16:00 | 19:00 |
| 17:00 | 20:00 |
| 18:00 | 21:00 |
| 19:00 | 22:00 |
| 20:00 | 23:00 |
| 21:00 | 00:00 |
| 22:00 | 01:00 |
| 23:00 | 02:00 |
British Summer Time
Offset: BST is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
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 United Kingdom, with about 8.962 million people. Other major cities in this time zone include Birmingham, Glasgow, Liverpool, Saint Helier.
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
Gulf Standard Time
Offset: GST is 4 hours ahead Greenwich Mean Time (GMT) and is used in Asia
Countries using this time zone: United Arab Emirates
Principal Cities: The largest city in the GST time zone is Dubai in United Arab Emirates, with about 3.79 million people. Other major cities in this time zone include Abu Dhabi, Sharjah, Al Ain, Ajman.
Daylight Saving: Clocks in Gulf Standard Time (GST) do not change for daylight saving time, so GST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
GST representations, usage and related time zones
- +04 - basic short
- +0400 - basic
- +04:00 - extended
- +0400 - sign character (+) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the east of the zero meridian.
- Delta - Military abbreviation for GST
- D - short form of 'Delta'
- KUYT - Kuybyshev Time
- MSD - Moscow Daylight Time
- SAMT - Samara Time
- AMT - Armenia Time
- AZT - Azerbaijan Time
- D - Delta Time Zone
- GET - Georgia Standard Time
- GST - Gulf Standard Time
- MUT - Mauritius Time
- RET - Reunion Time
- SCT - Seychelles Time