IRKST to BST Converter
Time Difference
Irkutsk Summer Time is 9 hours ahead of Greenwich Mean Time
1:30 pm13:30 in IRKST is 4:30 am04:30 in GMT
IRKST to BST call time
Best time for a conference call or a meeting is between 4pm-6pm in IRKST which corresponds to 8am-10am in BST
1:30 pm13:30 Irkutsk Summer Time (IRKST). Offset UTC +9:00 hours
4:30 am04:30 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
1:30 pm13:30 IRKST / 4:30 am04:30 GMT
| IRKST | GMT |
|---|---|
| 12am (midnight) | 3pm |
| 1am | 4pm |
| 2am | 5pm |
| 3am | 6pm |
| 4am | 7pm |
| 5am | 8pm |
| 6am | 9pm |
| 7am | 10pm |
| 8am | 11pm |
| 9am | 12am (midnight) |
| 10am | 1am |
| 11am | 2am |
| 12pm (noon) | 3am |
| 1pm | 4am |
| 2pm | 5am |
| 3pm | 6am |
| 4pm | 7am |
| 5pm | 8am |
| 6pm | 9am |
| 7pm | 10am |
| 8pm | 11am |
| 9pm | 12pm (noon) |
| 10pm | 1pm |
| 11pm | 2pm |
| 0:00 | 15:00 |
| 1:00 | 16:00 |
| 2:00 | 17:00 |
| 3:00 | 18:00 |
| 4:00 | 19:00 |
| 5:00 | 20:00 |
| 6:00 | 21:00 |
| 7:00 | 22:00 |
| 8:00 | 23:00 |
| 9:00 | 0:00 |
| 10:00 | 1:00 |
| 11:00 | 2:00 |
| 12:00 | 3:00 |
| 13:00 | 4:00 |
| 14:00 | 5:00 |
| 15:00 | 6:00 |
| 16:00 | 7:00 |
| 17:00 | 8:00 |
| 18:00 | 9:00 |
| 19:00 | 10:00 |
| 20:00 | 11:00 |
| 21:00 | 12:00 |
| 22:00 | 13:00 |
| 23:00 | 14:00 |
Irkutsk Summer Time
Offset: IRKST is 9 hours ahead Greenwich Mean Time (GMT) and is used in Asia
IRKST 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 nine hour and zero minutes time differences to the east of the zero meridian.
- India - Military abbreviation for IRKST
- I - short form of 'India'
- AWDT - Australian Western Daylight Time
- CHOST - Choibalsan Summer Time
- I - India Time Zone
- IRKST - Irkutsk Summer Time
- JST - Japan Standard Time
- KST - Korea Standard Time
- PWT - Palau Time
- TLT - East Timor Time
- ULAST - Ulaanbaatar Summer Time
- WIT - Eastern Indonesian Time
- YAKT - Yakutsk Time
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
Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.
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