BST to AST Arabia Converter
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
1:00 pm13:00 BST (UTC+1), Oct 12, 2026 = 3:00 pm15:00 AST (UTC+3), Oct 12, 2026
BST is 2 hours behind AST.
BST and AST examples
These examples always use BST (UTC+1) and AST (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 2 hours behind AST.
How the time difference changes
For most of the year, BST is 2 hours behind AST Arabia. From Oct 25, 2026 to Mar 28, 2027, GMT is 3 hours behind AST Arabia.
For most of the year, working hours of 9:00 am to 5:00 pm in BST correspond to 11:00 am to 7:00 pm in AST Arabia. At other times of the year, working hours of 9:00 am to 5:00 pm in GMT correspond to 12:00 pm to 8:00 pm in AST Arabia.For most of the year, working hours of 09:00 to 17:00 in BST correspond to 11:00 to 19:00 in AST Arabia. At other times of the year, working hours of 09:00 to 17:00 in GMT correspond to 12:00 to 20:00 in AST Arabia.
Compare BST time with AST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
British Summer Time is 2 hours behind Arabia Standard Time.
1:00 pm13:00 in BST is 3:00 pm15:00 in AST
BST to AST call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in BST which corresponds to 11am-5pm11:00-17:00 in AST
1:00 pm13:00 British Summer Time (BST). Offset UTC +1:00 hour
3:00 pm15:00 Arabia Standard Time (AST). Offset UTC +3:00 hours
1:00 pm13:00 BST / 3:00 pm15:00 AST
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.
| BST | AST |
|---|---|
| 2:00am | |
| 3:00am | |
| 4:00am | |
| 5:00am | |
| 6:00am | |
| 7:00am | |
| 8:00am | |
| 9:00am | |
| 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 | |
| 02:00 | |
| 03:00 | |
| 04:00 | |
| 05:00 | |
| 06:00 | |
| 07:00 | |
| 08:00 | |
| 09:00 | |
| 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 |
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
Arabia Standard Time
Offset: AST is 3 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Saudi Arabia
Principal Cities: The largest city in the AST time zone is Jeddah in Saudi Arabia, with about 4.697 million people. Other major cities in this time zone include Riyadh, Makkah, Madinah, Dammam.
Daylight Saving: Clocks in Arabia Standard Time (AST) do not change for daylight saving time, so AST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
AST 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 east of the zero meridian.
- Charlie - Military abbreviation for AST
- C - short form of 'Charlie'
- Atlantic Standard Time - UTC -4
- Arabia Standard Time - UTC +3
- EEST - Eastern European Summer Time
- MSK - Moscow Standard Time
- AST - Arabia Standard Time
- C - Charlie Time Zone
- EAT - Eastern Africa Time
- FET - Further Eastern European Time
- IDT - Israel Daylight Time
- TRT - Turkey Time