BST to IST Converter
Time Difference
British Summer Time is 4 hours and 30 minutes behind India Standard Time
3:30 pm15:30 in BST is 8:00 pm20:00 in IST
BST to IST call time
Best time for a conference call or a meeting is between 8am-1:30pm in BST which corresponds to 12:30pm-6pm in IST
3:30 pm15:30 British Summer Time (BST). Offset UTC +1:00 hour
8:00 pm20:00 India Standard Time (IST). Offset UTC +5:30 hours
3:30 pm15:30 BST / 8:00 pm20:00 IST
| BST | IST |
|---|---|
| 12am (midnight) | 4:30 am |
| 1am | 5:30 am |
| 2am | 6:30 am |
| 3am | 7:30 am |
| 4am | 8:30 am |
| 5am | 9:30 am |
| 6am | 10:30 am |
| 7am | 11:30 am |
| 8am | 12:30 pm |
| 9am | 1:30 pm |
| 10am | 2:30 pm |
| 11am | 3:30 pm |
| 12pm (noon) | 4:30 pm |
| 1pm | 5:30 pm |
| 2pm | 6:30 pm |
| 3pm | 7:30 pm |
| 4pm | 8:30 pm |
| 5pm | 9:30 pm |
| 6pm | 10:30 pm |
| 7pm | 11:30 pm |
| 8pm | 12:30 am |
| 9pm | 1:30 am |
| 10pm | 2:30 am |
| 11pm | 3:30 am |
| 0:00 | 4:30 |
| 1:00 | 5:30 |
| 2:00 | 6:30 |
| 3:00 | 7:30 |
| 4:00 | 8:30 |
| 5:00 | 9:30 |
| 6:00 | 10:30 |
| 7:00 | 11:30 |
| 8:00 | 12:30 |
| 9:00 | 13:30 |
| 10:00 | 14:30 |
| 11:00 | 15:30 |
| 12:00 | 16:30 |
| 13:00 | 17:30 |
| 14:00 | 18:30 |
| 15:00 | 19:30 |
| 16:00 | 20:30 |
| 17:00 | 21:30 |
| 18:00 | 22:30 |
| 19:00 | 23:30 |
| 20:00 | 0:30 |
| 21:00 | 1:30 |
| 22:00 | 2:30 |
| 23:00 | 3:30 |
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 31, 2024 at 1:00 am local time and clocks were set one hour forward to Sunday, March 31, 2024, 2:00 am. Daylight saving starts annually the on last Sunday of March
End: British Summer Time (BST) ends on Sunday, October 27, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, October 27, 2024, 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
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: India
Principal Cities: The largest city in the IST timezone is Mumbai from India with population about 12.692 million people. Other major cities in the area are Delhi, Bangalore, Kolkata, Chennai
Daylight Saving: India Standard Time (IST) is not adjusted for daylight saving therefore IST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, India Standard Time remains the same
IST representations, usage and related time zones
- +0530 - basic
- +05:30 - extended
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates five hour and thirty minutes time differences to the east of the zero meridian.
- Asia/Calcutta
- Asia/Kolkata
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
- Iran Standard Time - UTC +3:30