BST to JST to PT to EST
Time Difference
British Summer Time is 8 hours behind Japan Standard Time and 8 hours ahead of Pacific Daylight Time and 5 hours ahead of Eastern Daylight Time
8:00 am08:00 in BST is 4:00 pm16:00 in JST and is 12:00 am00:00 in PDT and is 3:00 am03:00 in EDT
BST to JST call time
Best time for a conference call or a meeting is between 8am-10am in BST which corresponds to 4pm-6pm in JST
BST to PT call time
Best time for a conference call or a meeting is between 5pm-7pm in BST which corresponds to 8am-10am in PT
BST to EST call time
Best time for a conference call or a meeting is between 2pm-6pm in BST which corresponds to 8am-12pm in EST
8:00 am08:00 British Summer Time (BST). Offset UTC +1:00 hour
4:00 pm16:00 Japan Standard Time (JST). Offset UTC +9:00 hours
12:00 am00:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
3:00 am03:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
8:00 am08:00 BST / 4:00 pm16:00 JST / 12:00 am00:00 PDT / 3:00 am03:00 EDT
| BST | JST | PT | EDT |
|---|---|---|---|
| 12am (midnight) | 8am | 4pm | 7pm |
| 1am | 9am | 5pm | 8pm |
| 2am | 10am | 6pm | 9pm |
| 3am | 11am | 7pm | 10pm |
| 4am | 12pm (noon) | 8pm | 11pm |
| 5am | 1pm | 9pm | 12am (midnight) |
| 6am | 2pm | 10pm | 1am |
| 7am | 3pm | 11pm | 2am |
| 8am | 4pm | 12am (midnight) | 3am |
| 9am | 5pm | 1am | 4am |
| 10am | 6pm | 2am | 5am |
| 11am | 7pm | 3am | 6am |
| 12pm (noon) | 8pm | 4am | 7am |
| 1pm | 9pm | 5am | 8am |
| 2pm | 10pm | 6am | 9am |
| 3pm | 11pm | 7am | 10am |
| 4pm | 12am (midnight) | 8am | 11am |
| 5pm | 1am | 9am | 12pm (noon) |
| 6pm | 2am | 10am | 1pm |
| 7pm | 3am | 11am | 2pm |
| 8pm | 4am | 12pm (noon) | 3pm |
| 9pm | 5am | 1pm | 4pm |
| 10pm | 6am | 2pm | 5pm |
| 11pm | 7am | 3pm | 6pm |
| 0:00 | 8:00 | 16:00 | 19:00 |
| 1:00 | 9:00 | 17:00 | 20:00 |
| 2:00 | 10:00 | 18:00 | 21:00 |
| 3:00 | 11:00 | 19:00 | 22:00 |
| 4:00 | 12:00 | 20:00 | 23:00 |
| 5:00 | 13:00 | 21:00 | 0:00 |
| 6:00 | 14:00 | 22:00 | 1:00 |
| 7:00 | 15:00 | 23:00 | 2:00 |
| 8:00 | 16:00 | 0:00 | 3:00 |
| 9:00 | 17:00 | 1:00 | 4:00 |
| 10:00 | 18:00 | 2:00 | 5:00 |
| 11:00 | 19:00 | 3:00 | 6:00 |
| 12:00 | 20:00 | 4:00 | 7:00 |
| 13:00 | 21:00 | 5:00 | 8:00 |
| 14:00 | 22:00 | 6:00 | 9:00 |
| 15:00 | 23:00 | 7:00 | 10:00 |
| 16:00 | 0:00 | 8:00 | 11:00 |
| 17:00 | 1:00 | 9:00 | 12:00 |
| 18:00 | 2:00 | 10:00 | 13:00 |
| 19:00 | 3:00 | 11:00 | 14:00 |
| 20:00 | 4:00 | 12:00 | 15:00 |
| 21:00 | 5:00 | 13:00 | 16:00 |
| 22:00 | 6:00 | 14:00 | 17:00 |
| 23:00 | 7:00 | 15:00 | 18:00 |
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
Japan Standard Time
Offset: JST is 9 hours ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: Japan
Principal Cities: The largest city in the JST timezone is Tokyo from Japan with population about 8.337 million people. Other major cities in the area are Yokohama, Osaka shi, Nagoya shi, Sapporo
Daylight Saving: Japan Standard Time (JST) is not adjusted for daylight saving therefore JST 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, Japan Standard Time remains the same
JST 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 JST
- I - short form of 'India'
- Asia/Tokyo
- Japan
- 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
Pacific Time
Pacific Time (PT) is a general term used to describe the areas that observe either the Pacific Standard Time (PST) or Pacific Daylight Time (PDT) in the United States and Canada. PT also called Pacific Coast Time. PT is not static but switches between PDT and PST.
Territories observing the Pacific Time Zone are primarily in North America. It runs through the western part of Canada, the United States and the Northwestern part of Mexico.
Countries: It is used in following countries: Canada, Mexico, United States.
Principal Cities: The largest city in the PST timezone is Los Angeles from USA with population about 3.793 million people. Other major cities in the area are Vancouver, Tijuana, San Diego, San Jose.
French: HNP - Heure Normale du Pacifique
Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste
Pacific Time (PT) is a general term used to describe the areas that observe either the Pacific Standard Time (PST) or Pacific Daylight Time (PDT) in the United States and Canada. PT also called Pacific Coast Time. PT is not static but switches between PDT and PST.
Territories observing the Pacific Time Zone are primarily in North America. It runs through the western part of Canada, the United States and the Northwestern part of Mexico.
Countries: It is used in following countries: Canada, Mexico, United States.
Principal Cities: The largest city in the PST timezone is Los Angeles from USA with population about 3.793 million people. Other major cities in the area are Vancouver, Tijuana, San Diego, San Jose.
French: HNP - Heure Normale du Pacifique
Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste
PT representations, usage and related time zones
- -08 - basic short
- -0800 - basic
- -08:00 - extended
- -0800 - sign character (-) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates eight hour and zero minutes time differences to the west of the zero meridian.
- Uniform - Military abbreviation for PT
- U - short form of 'Uniform'
- Pacific Time - UTC -8
- Ponape Time - UTC +11
- AKDT - Alaska Daylight Time
- PST - Pacific Standard Time
- PT - Pacific Time
- PST - Pitcairn Standard Time
- U - Uniform Time Zone
Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, United States
Principal Cities: The largest city in the EST timezone is New York City from USA with population about 8.175 million people. Other major cities in the area are Toronto, Montreal, Brooklyn, Borough of Queens
French: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Eastern Daylight Time (EDT).
End: Eastern Standard Time (EST) has ended on Sunday, March 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.
Start: Eastern Standard Time (EST) starts on Sunday, November 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually the on first Sunday of November.
EST representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates five hour and zero minutes time differences to the west of the zero meridian.
- Romeo - Military abbreviation for EST
- R - short form of 'Romeo'
- America/Atikokan
- America/Cancun
- America/Cayman
- America/Coral_Harbour
- America/Detroit
- America/Fort_Wayne
- America/Grand_Turk
- America/Indiana/Indianapolis
- America/Indiana/Marengo
- America/Indiana/Petersburg
- America/Indiana/Vevay
- America/Indiana/Vincennes
- America/Indiana/Winamac
- America/Indianapolis
- America/Iqaluit
- America/Jamaica
- America/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Panama
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST
- EST5EDT
- Jamaica
- US/East-Indiana
- US/Eastern
- US/Michigan
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone