PDT to BST to EDT to GMT to AEST
Time Difference
Pacific Daylight Time is 8 hours behind British Summer Time and 3 hours behind Eastern Daylight Time and 7 hours behind Greenwich Mean Time and 17 hours behind Australian Eastern Standard Time
4:30 pm16:30 in PDT is 12:30 am00:30 in BST and is 7:30 pm19:30 in EDT and is 11:30 pm23:30 in GMT and is 9:30 am09:30 in AEST
PDT to BST call time
Best time for a conference call or a meeting is between 8am-10am in PDT which corresponds to 4pm-6pm in BST
PDT to EDT call time
Best time for a conference call or a meeting is between 8am-3pm in PDT which corresponds to 11am-6pm in EDT
PDT to GMT call time
Best time for a conference call or a meeting is between 8am-11am in PDT which corresponds to 3pm-6pm in GMT
PDT to AEST call time
Best time for a conference call or a meeting is between 4:30am-6:30am in PDT which corresponds to 9:30pm-11:30pm in AEST
4:30 pm16:30 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
12:30 am00:30 British Summer Time (BST). Offset UTC +1:00 hour
7:30 pm19:30 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
11:30 pm23:30 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
9:30 am09:30 Australian Eastern Standard Time (AEST). Offset UTC +10:00 hours
4:30 pm16:30 PDT / 12:30 am00:30 BST / 7:30 pm19:30 EDT / 11:30 pm23:30 GMT / 9:30 am09:30 AEST
| PDT | BST | EDT | GMT | AEST |
|---|---|---|---|---|
| 12am (midnight) | 8am | 3am | 7am | 5pm |
| 1am | 9am | 4am | 8am | 6pm |
| 2am | 10am | 5am | 9am | 7pm |
| 3am | 11am | 6am | 10am | 8pm |
| 4am | 12pm (noon) | 7am | 11am | 9pm |
| 5am | 1pm | 8am | 12pm (noon) | 10pm |
| 6am | 2pm | 9am | 1pm | 11pm |
| 7am | 3pm | 10am | 2pm | 12am (midnight) |
| 8am | 4pm | 11am | 3pm | 1am |
| 9am | 5pm | 12pm (noon) | 4pm | 2am |
| 10am | 6pm | 1pm | 5pm | 3am |
| 11am | 7pm | 2pm | 6pm | 4am |
| 12pm (noon) | 8pm | 3pm | 7pm | 5am |
| 1pm | 9pm | 4pm | 8pm | 6am |
| 2pm | 10pm | 5pm | 9pm | 7am |
| 3pm | 11pm | 6pm | 10pm | 8am |
| 4pm | 12am (midnight) | 7pm | 11pm | 9am |
| 5pm | 1am | 8pm | 12am (midnight) | 10am |
| 6pm | 2am | 9pm | 1am | 11am |
| 7pm | 3am | 10pm | 2am | 12pm (noon) |
| 8pm | 4am | 11pm | 3am | 1pm |
| 9pm | 5am | 12am (midnight) | 4am | 2pm |
| 10pm | 6am | 1am | 5am | 3pm |
| 11pm | 7am | 2am | 6am | 4pm |
| 0:00 | 8:00 | 3:00 | 7:00 | 17:00 |
| 1:00 | 9:00 | 4:00 | 8:00 | 18:00 |
| 2:00 | 10:00 | 5:00 | 9:00 | 19:00 |
| 3:00 | 11:00 | 6:00 | 10:00 | 20:00 |
| 4:00 | 12:00 | 7:00 | 11:00 | 21:00 |
| 5:00 | 13:00 | 8:00 | 12:00 | 22:00 |
| 6:00 | 14:00 | 9:00 | 13:00 | 23:00 |
| 7:00 | 15:00 | 10:00 | 14:00 | 0:00 |
| 8:00 | 16:00 | 11:00 | 15:00 | 1:00 |
| 9:00 | 17:00 | 12:00 | 16:00 | 2:00 |
| 10:00 | 18:00 | 13:00 | 17:00 | 3:00 |
| 11:00 | 19:00 | 14:00 | 18:00 | 4:00 |
| 12:00 | 20:00 | 15:00 | 19:00 | 5:00 |
| 13:00 | 21:00 | 16:00 | 20:00 | 6:00 |
| 14:00 | 22:00 | 17:00 | 21:00 | 7:00 |
| 15:00 | 23:00 | 18:00 | 22:00 | 8:00 |
| 16:00 | 0:00 | 19:00 | 23:00 | 9:00 |
| 17:00 | 1:00 | 20:00 | 0:00 | 10:00 |
| 18:00 | 2:00 | 21:00 | 1:00 | 11:00 |
| 19:00 | 3:00 | 22:00 | 2:00 | 12:00 |
| 20:00 | 4:00 | 23:00 | 3:00 | 13:00 |
| 21:00 | 5:00 | 0:00 | 4:00 | 14:00 |
| 22:00 | 6:00 | 1:00 | 5:00 | 15:00 |
| 23:00 | 7:00 | 2:00 | 6:00 | 16:00 |
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
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
Eastern Daylight Time
Offset: EDT is 4 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Bahamas, Canada, Haiti, Turks & Caicos Is, United States
Principal Cities: The largest city in the EDT 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: HAE - Heure Avancée de l'Est
Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste
Daylight Saving: Eastern Daylight Time (EDT) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Eastern Standard Time (EST).
Start: Eastern Daylight Time (EDT) 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: Eastern Daylight Time (EDT) 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
EDT representations, usage and related time zones
- -04 - basic short
- -0400 - basic
- -04:00 - extended
- -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates four hour and zero minutes time differences to the west of the zero meridian.
- Quebec - Military abbreviation for EDT
- Q - short form of 'Quebec'
- 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/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST5EDT
- US/East-Indiana
- US/Eastern
- US/Michigan
- AST - Atlantic Standard Time
- EDT - Eastern Daylight Time
- AMT - Amazon Time
- BOT - Bolivia Time
- CDT - Cuba Daylight Time
- CLT - Chile Standard Time
- FKT - Falkland Island Time
- GYT - Guyana Time
- HLV - Hora Legal de Venezuela
- PYT - Paraguay Time
- Q - Quebec Time Zone
- VET - Venezuelan Standard Time
Greenwich Mean Time
Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and is used in Europe
Countries: It is used in following countries: Burkina Faso, Côte d'Ivoire, Britain (UK), Guernsey, Ghana, Greenland, Gambia, Guinea, Guinea-Bissau, Ireland, Isle of Man, Iceland, Jersey, Liberia, Mali, Mauritania, St Helena, Sierra Leone, Senegal, Sao Tome & Principe, Togo
Principal Cities: The largest city in the GMT timezone is London from United Kingdom with population about 7.557 million people. Other major cities in the area are Abidjan, Dakar, Grand Dakar, Accra
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.
GMT representations, usage and related time zones
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates zero hour and zero minutes time differences of the zero meridian.
- Zulu - Military abbreviation for GMT
- Z - short form of 'Zulu'
- Africa/Abidjan
- Africa/Accra
- Africa/Bamako
- Africa/Banjul
- Africa/Bissau
- Africa/Conakry
- Africa/Dakar
- Africa/Freetown
- Africa/Lome
- Africa/Monrovia
- Africa/Nouakchott
- Africa/Ouagadougou
- Africa/Sao_Tome
- Africa/Timbuktu
- America/Danmarkshavn
- Atlantic/Reykjavik
- Atlantic/St_Helena
- Eire
- Etc/GMT
- Etc/GMT+0
- Etc/GMT-0
- Etc/GMT0
- Etc/Greenwich
- Europe/Belfast
- Europe/Dublin
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- GMT
- GMT+0
- GMT-0
- GMT0
- Greenwich
- Iceland
- Greenwich Mean Time - UTC +0
- GMT+07:00 - UTC +7
- GMT+03:00 - UTC +3
- GMT - UTC +1
- GMT+11:00 - UTC +11
- GMT-01:00 - UTC -1
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Universal Time Coordinated
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
Australian Eastern Standard Time
Offset: AEST is 10 hours 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 AEST timezone is Sydney from Australia with population about 4.627 million people. Other major cities in the area are Melbourne, Brisbane, Gold Coast, Canberra
Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Australian Eastern Daylight Time (AEDT).
Start: Australian Eastern Standard Time (AEST) started 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. Standard time starts annually the on first Sunday of April.
End: Australian Eastern Standard Time (AEST) ends 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 local daylight time instead. Standard time starts annually the on first Sunday of October.
Australian Eastern Standard Time (AEST) is used in Queensland, Victoria, Tasmania, New South Wales (except Broken Hill), Australian Capital Territory and in folling major cities Brisbane, Sydney, Melbourne, Hobart, Canberra
Only part of Australia observe daylight saving. It is used in New South Wales, Victoria, South Australia, Tasmania, and the Australian Capital Territory. Daylight saving is not observed in Queensland, Western Australia or the Northern Territory.
AEST representations, usage and related time zones
- +10 - basic short
- +1000 - basic
- +10:00 - extended
- +1000 - sign character (+) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates ten hour and zero minutes time differences to the east of the zero meridian.
- Kilo - Military abbreviation for AEST
- K - short form of 'Kilo'
- Antarctica/Macquarie
- Australia/ACT
- Australia/Brisbane
- Australia/Canberra
- Australia/Currie
- Australia/Hobart
- Australia/Lindeman
- Australia/Melbourne
- Australia/NSW
- Australia/Queensland
- Australia/Sydney
- Australia/Tasmania
- Australia/Victoria
- AEST - Australian Eastern Standard Time
- CHUT - Chuuk Time
- ChST - Chamorro Standard Time
- K - Kilo Time Zone
- KDT - Korea Daylight Time
- PGT - Papua New Guinea Time
- VLAT - Vladivostok Time
- YAKST - Yakutsk Summer Time
- YAPT - Yap Time