BST to IST Ist Converter
Time Difference
British Summer Time is 2 hours and 30 minutes behind Iran Standard Time
8:00 pm20:00 in BST is 10:30 pm22:30 in IST
BST to IST call time
Best time for a conference call or a meeting is between 8am-3:30pm in BST which corresponds to 10:30am-6pm in IST
8:00 pm20:00 British Summer Time (BST). Offset UTC +1:00 hour
10:30 pm22:30 Iran Standard Time (IST). Offset UTC +3:30 hours
8:00 pm20:00 BST / 10:30 pm22:30 IST
| BST | IST |
|---|---|
| 12am (midnight) | 2:30 am |
| 1am | 3:30 am |
| 2am | 4:30 am |
| 3am | 5:30 am |
| 4am | 6:30 am |
| 5am | 7:30 am |
| 6am | 8:30 am |
| 7am | 9:30 am |
| 8am | 10:30 am |
| 9am | 11:30 am |
| 10am | 12:30 pm |
| 11am | 1:30 pm |
| 12pm (noon) | 2:30 pm |
| 1pm | 3:30 pm |
| 2pm | 4:30 pm |
| 3pm | 5:30 pm |
| 4pm | 6:30 pm |
| 5pm | 7:30 pm |
| 6pm | 8:30 pm |
| 7pm | 9:30 pm |
| 8pm | 10:30 pm |
| 9pm | 11:30 pm |
| 10pm | 12:30 am |
| 11pm | 1:30 am |
| 0:00 | 2:30 |
| 1:00 | 3:30 |
| 2:00 | 4:30 |
| 3:00 | 5:30 |
| 4:00 | 6:30 |
| 5:00 | 7:30 |
| 6:00 | 8:30 |
| 7:00 | 9:30 |
| 8:00 | 10:30 |
| 9:00 | 11:30 |
| 10:00 | 12:30 |
| 11:00 | 13:30 |
| 12:00 | 14:30 |
| 13:00 | 15:30 |
| 14:00 | 16:30 |
| 15:00 | 17:30 |
| 16:00 | 18:30 |
| 17:00 | 19:30 |
| 18:00 | 20:30 |
| 19:00 | 21:30 |
| 20:00 | 22:30 |
| 21:00 | 23:30 |
| 22:00 | 0:30 |
| 23:00 | 1:30 |
British Summer Time
Offset: BST is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries: It is used in following countries: Britain (UK), Guernsey, Isle of Man, Jersey
Principal Cities: The largest city in the BST timezone is London from United Kingdom with population about 7.557 million people. Other major cities in the area are Birmingham, Glasgow, Liverpool, Saint Helier
Daylight Saving: British Summer Time (BST) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Greenwich Mean Time (GMT).
Start: British Summer Time (BST) started on Sunday, March 30, 2025 at 1:00 am local time and clocks were set one hour forward to Sunday, March 30, 2025, 2:00 am. Daylight saving starts annually the on last Sunday of March
End: British Summer Time (BST) ends on Sunday, October 26, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, October 26, 2025, 1:00 am local standard time instead. Daylight saving ends annually the on 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 one hour and zero minutes time differences 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
- Brasilia Standard Time - UTC -3
- 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
Iran Standard Time
Offset: IST is 3 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: Israel
Principal Cities: The largest city in the IST timezone is Jerusalem from Israel with population about 801,000 people. Other major cities in the area are West Jerusalem, Haifa, Tel Aviv, Ashdod
IST representations, usage and related time zones
- +0330 - basic
- +03:30 - extended
- +0330 - sign character (+) followed by a four digit time providing hours (03) and minutes (30) of the offset. Indicates three hour and thirty minutes time differences to the east of the zero meridian.
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
- Iran Standard Time - UTC +3:30