BST to ACDT to PDT to EST to EEST to CET
Time Difference
British Summer Time is 8 hours and 30 minutes behind Australian Central Standard Time and 8 hours ahead of Pacific Daylight Time and 5 hours ahead of Eastern Daylight Time and 2 hours behind Eastern European Summer Time and 1 hours behind Central European Summer Time
8:30 pm20:30 in BST is 5:00 am05:00 in ACST and is 12:30 pm12:30 in PDT and is 3:30 pm15:30 in EDT and is 10:30 pm22:30 in EEST and is 9:30 pm21:30 in CEST
BST to ACDT call time
Best time for a conference call or a meeting is between 8am-10am in BST which corresponds to 5:30pm-7:30pm in ACDT
BST to PDT call time
Best time for a conference call or a meeting is between 4pm-6pm in BST which corresponds to 8am-10am in PDT
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
BST to EEST call time
Best time for a conference call or a meeting is between 8am-4pm in BST which corresponds to 10am-6pm in EEST
BST to CET call time
Best time for a conference call or a meeting is between 8am-6pm in BST which corresponds to 8am-6pm in CET
8:30 pm20:30 British Summer Time (BST). Offset UTC +1:00 hour
5:00 am05:00 Australian Central Standard Time (ACST). Offset UTC +9:30 hours
12:30 pm12:30 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
3:30 pm15:30 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
10:30 pm22:30 Eastern European Summer Time (EEST). Offset UTC +3:00 hours
9:30 pm21:30 Central European Summer Time (CEST). Offset UTC +2:00 hours
8:30 pm20:30 BST / 5:00 am05:00 ACST / 12:30 pm12:30 PDT / 3:30 pm15:30 EDT / 10:30 pm22:30 EEST / 9:30 pm21:30 CEST
| BST | ACST | PDT | EDT | EEST | CEST |
|---|---|---|---|---|---|
| 12am (midnight) | 8:30 am | 4pm | 7pm | 2am | 1am |
| 1am | 9:30 am | 5pm | 8pm | 3am | 2am |
| 2am | 10:30 am | 6pm | 9pm | 4am | 3am |
| 3am | 11:30 am | 7pm | 10pm | 5am | 4am |
| 4am | 12:30 pm | 8pm | 11pm | 6am | 5am |
| 5am | 1:30 pm | 9pm | 12am (midnight) | 7am | 6am |
| 6am | 2:30 pm | 10pm | 1am | 8am | 7am |
| 7am | 3:30 pm | 11pm | 2am | 9am | 8am |
| 8am | 4:30 pm | 12am (midnight) | 3am | 10am | 9am |
| 9am | 5:30 pm | 1am | 4am | 11am | 10am |
| 10am | 6:30 pm | 2am | 5am | 12pm (noon) | 11am |
| 11am | 7:30 pm | 3am | 6am | 1pm | 12pm (noon) |
| 12pm (noon) | 8:30 pm | 4am | 7am | 2pm | 1pm |
| 1pm | 9:30 pm | 5am | 8am | 3pm | 2pm |
| 2pm | 10:30 pm | 6am | 9am | 4pm | 3pm |
| 3pm | 11:30 pm | 7am | 10am | 5pm | 4pm |
| 4pm | 12:30 am | 8am | 11am | 6pm | 5pm |
| 5pm | 1:30 am | 9am | 12pm (noon) | 7pm | 6pm |
| 6pm | 2:30 am | 10am | 1pm | 8pm | 7pm |
| 7pm | 3:30 am | 11am | 2pm | 9pm | 8pm |
| 8pm | 4:30 am | 12pm (noon) | 3pm | 10pm | 9pm |
| 9pm | 5:30 am | 1pm | 4pm | 11pm | 10pm |
| 10pm | 6:30 am | 2pm | 5pm | 12am (midnight) | 11pm |
| 11pm | 7:30 am | 3pm | 6pm | 1am | 12am (midnight) |
| 0:00 | 8:30 | 16:00 | 19:00 | 2:00 | 1:00 |
| 1:00 | 9:30 | 17:00 | 20:00 | 3:00 | 2:00 |
| 2:00 | 10:30 | 18:00 | 21:00 | 4:00 | 3:00 |
| 3:00 | 11:30 | 19:00 | 22:00 | 5:00 | 4:00 |
| 4:00 | 12:30 | 20:00 | 23:00 | 6:00 | 5:00 |
| 5:00 | 13:30 | 21:00 | 0:00 | 7:00 | 6:00 |
| 6:00 | 14:30 | 22:00 | 1:00 | 8:00 | 7:00 |
| 7:00 | 15:30 | 23:00 | 2:00 | 9:00 | 8:00 |
| 8:00 | 16:30 | 0:00 | 3:00 | 10:00 | 9:00 |
| 9:00 | 17:30 | 1:00 | 4:00 | 11:00 | 10:00 |
| 10:00 | 18:30 | 2:00 | 5:00 | 12:00 | 11:00 |
| 11:00 | 19:30 | 3:00 | 6:00 | 13:00 | 12:00 |
| 12:00 | 20:30 | 4:00 | 7:00 | 14:00 | 13:00 |
| 13:00 | 21:30 | 5:00 | 8:00 | 15:00 | 14:00 |
| 14:00 | 22:30 | 6:00 | 9:00 | 16:00 | 15:00 |
| 15:00 | 23:30 | 7:00 | 10:00 | 17:00 | 16:00 |
| 16:00 | 0:30 | 8:00 | 11:00 | 18:00 | 17:00 |
| 17:00 | 1:30 | 9:00 | 12:00 | 19:00 | 18:00 |
| 18:00 | 2:30 | 10:00 | 13:00 | 20:00 | 19:00 |
| 19:00 | 3:30 | 11:00 | 14:00 | 21:00 | 20:00 |
| 20:00 | 4:30 | 12:00 | 15:00 | 22:00 | 21:00 |
| 21:00 | 5:30 | 13:00 | 16:00 | 23:00 | 22:00 |
| 22:00 | 6:30 | 14:00 | 17:00 | 0:00 | 23:00 |
| 23:00 | 7:30 | 15:00 | 18:00 | 1:00 | 0:00 |
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
Australian Central Daylight Time
Offset: ACDT is 10 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Australia
Countries: It is used in following countries: Australia
Principal Cities: The largest city in the ACDT timezone is Adelaide from Australia with population about 1.225 million people. Other major cities in the area are Adelaide Hills, Mount Gambier, Morphett Vale, Prospect
Daylight Saving: Australian Central Daylight Time (ACDT) is a daylight saving/summer time zone, however during winter some places adjust time for one hour back and observe Australian Central Standard Time (ACST).
End: Australian Central Daylight Time (ACDT) has ended on Sunday, April 6, 2025 at 3:00 am local time and clocks were set one hour back to Sunday, April 6, 2025, 2:00 am local standard time instead. Daylight saving ends annually the on first Sunday of April
Start: Australian Central Daylight Time (ACDT) starts on Sunday, October 5, 2025 at 2:00 am local time and clocks are set one hour forward to Sunday, October 5, 2025, 3:00 am. Daylight saving starts annually the on first Sunday of October
ACDT representations, usage and related time zones
- +1030 - basic
- +10:30 - extended
- +1030 - sign character (+) followed by a four digit time providing hours (10) and minutes (30) of the offset. Indicates ten hour and thirty minutes time differences to the east of the zero meridian.
- Australia/Adelaide
- Australia/Broken_Hill
- Australia/South
- Australia/Yancowinna
- ACDT - Australian Central Daylight Time
- LHST - Lord Howe Standard Time
Pacific Daylight Time
Offset: PDT is 7 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Canada, Mexico, United States
Principal Cities: The largest city in the PDT 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: HAP - Heure Avancée du Pacifique
Spanish: PT - Zona Noroeste
Daylight Saving: Pacific Daylight Time (PDT) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Pacific Standard Time (PST).
Start: Pacific Daylight Time (PDT) started 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. Daylight saving starts annually the on second Sunday of March
End: Pacific Daylight Time (PDT) ends 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 local standard time instead. Daylight saving ends annually the on first Sunday of November
PDT representations, usage and related time zones
- -07 - basic short
- -0700 - basic
- -07:00 - extended
- -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates seven hour and zero minutes time differences to the west of the zero meridian.
- Tango - Military abbreviation for PDT
- T - short form of 'Tango'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango 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
Eastern European Summer Time
Offset: EEST is 3 hours ahead Greenwich Mean Time (GMT) and is used in Europe
Countries: It is used in following countries: Åland Islands, Bulgaria, Cyprus, Estonia, Egypt, Finland, Greece, Lebanon, Lithuania, Latvia, Moldova, Palestine, Romania, Ukraine
Principal Cities: The largest city in the EEST timezone is Cairo from Egypt with population about 7.735 million people. Other major cities in the area are Alexandria, Kiev, Al Jizah, Beirut
German: OESZ - Osteuropäische Sommerzeit
Daylight Saving: Eastern European Summer Time (EEST) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Eastern European Time (EET).
Start: Eastern European Summer Time (EEST) started on Sunday, March 30, 2025 at 3:00 am local time and clocks were set one hour forward to Sunday, March 30, 2025, 4:00 am. Daylight saving starts annually the on last Sunday of March
End: Eastern European Summer Time (EEST) ends on Sunday, October 26, 2025 at 4:00 am local time and clocks are set one hour back to Sunday, October 26, 2025, 3:00 am local standard time instead. Daylight saving ends annually the on last Sunday of October
EEST 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 three hour and zero minutes time differences to the east of the zero meridian.
- Charlie - Military abbreviation for EEST
- C - short form of 'Charlie'
- Africa/Cairo
- Asia/Beirut
- Asia/Famagusta
- Asia/Gaza
- Asia/Hebron
- Asia/Nicosia
- EET
- Egypt
- Europe/Athens
- Europe/Bucharest
- Europe/Chisinau
- Europe/Helsinki
- Europe/Kiev
- Europe/Kyiv
- Europe/Mariehamn
- Europe/Nicosia
- Europe/Riga
- Europe/Sofia
- Europe/Tallinn
- Europe/Tiraspol
- Europe/Uzhgorod
- Europe/Vilnius
- Europe/Zaporozhye
- 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
Central European Time
Offset: CET is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries: It is used in following countries: Andorra, Albania, Austria, Bosnia & Herzegovina, Belgium, Switzerland, Czech Republic, Germany, Denmark, Algeria, Spain, France, Gibraltar, Croatia, Hungary, Italy, Liechtenstein, Luxembourg, Monaco, Montenegro, North Macedonia, Malta, Netherlands, Norway, Poland, Serbia, Sweden, Slovenia, Svalbard & Jan Mayen, Slovakia, San Marino, Tunisia, Vatican City
Principal Cities: The largest city in the CET timezone is Berlin from Germany with population about 3.426 million people. Other major cities in the area are Madrid, Rome, Paris, Algiers
German: MEZ - Mitteleuropäische Zeit
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 Central European Summer Time (CEST).
End: Central European Time (CET) has ended on Sunday, March 30, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 30, 2025, 3:00 am local daylight time instead. Standard time ends annually the on last Sunday of March.
Start: Central European Time (CET) starts on Sunday, October 26, 2025 at 3:00 am local time and clocks are set one hour back to Sunday, October 26, 2025, 2:00 am. Standard time starts annually the on last Sunday of October.
CET 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 CET
- A - short form of 'Alpha'
- Africa/Algiers
- Africa/Ceuta
- Africa/Tunis
- Arctic/Longyearbyen
- Atlantic/Jan_Mayen
- CET
- Europe/Amsterdam
- Europe/Andorra
- Europe/Belgrade
- Europe/Berlin
- Europe/Bratislava
- Europe/Brussels
- Europe/Budapest
- Europe/Busingen
- Europe/Copenhagen
- Europe/Gibraltar
- Europe/Ljubljana
- Europe/Luxembourg
- Europe/Madrid
- Europe/Malta
- Europe/Monaco
- Europe/Oslo
- Europe/Paris
- Europe/Podgorica
- Europe/Prague
- Europe/Rome
- Europe/San_Marino
- Europe/Sarajevo
- Europe/Skopje
- Europe/Stockholm
- Europe/Tirane
- Europe/Vaduz
- Europe/Vatican
- Europe/Vienna
- Europe/Warsaw
- Europe/Zagreb
- Europe/Zurich
- MET
- Poland
- 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