PDT to UTC to EDT to BST to IST to JST to AEST
Time Difference
Pacific Daylight Time is 7 hours behind Universal Time Coordinated and 3 hours behind Eastern Daylight Time and 8 hours behind British Summer Time and 12 hours and 30 minutes behind India Standard Time and 16 hours behind Japan Standard Time and 17 hours behind Australian Eastern Standard Time
9:00 pm21:00 in PDT is 4:00 am04:00 in UTC and is 12:00 am00:00 in EDT and is 5:00 am05:00 in BST and is 9:30 am09:30 in IST and is 1:00 pm13:00 in JST and is 2:00 pm14:00 in AEST
PDT to UTC call time
Best time for a conference call or a meeting is between 8am-11am in PDT which corresponds to 3pm-6pm in UTC
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 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 IST call time
Best time for a conference call or a meeting is between 6:30am-8:30am in PDT which corresponds to 7pm-9pm in IST
PDT to JST call time
Best time for a conference call or a meeting is between 5am-7am in PDT which corresponds to 9pm-11pm in JST
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
9:00 pm21:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
4:00 am04:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
12:00 am00:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
5:00 am05:00 British Summer Time (BST). Offset UTC +1:00 hour
9:30 am09:30 India Standard Time (IST). Offset UTC +5:30 hours
1:00 pm13:00 Japan Standard Time (JST). Offset UTC +9:00 hours
2:00 pm14:00 Australian Eastern Standard Time (AEST). Offset UTC +10:00 hours
9:00 pm21:00 PDT / 4:00 am04:00 UTC / 12:00 am00:00 EDT / 5:00 am05:00 BST / 9:30 am09:30 IST / 1:00 pm13:00 JST / 2:00 pm14:00 AEST
| PDT | UTC | EDT | BST | IST | JST | AEST |
|---|---|---|---|---|---|---|
| 12am (midnight) | 7am | 3am | 8am | 12:30 pm | 4pm | 5pm |
| 1am | 8am | 4am | 9am | 1:30 pm | 5pm | 6pm |
| 2am | 9am | 5am | 10am | 2:30 pm | 6pm | 7pm |
| 3am | 10am | 6am | 11am | 3:30 pm | 7pm | 8pm |
| 4am | 11am | 7am | 12pm (noon) | 4:30 pm | 8pm | 9pm |
| 5am | 12pm (noon) | 8am | 1pm | 5:30 pm | 9pm | 10pm |
| 6am | 1pm | 9am | 2pm | 6:30 pm | 10pm | 11pm |
| 7am | 2pm | 10am | 3pm | 7:30 pm | 11pm | 12am (midnight) |
| 8am | 3pm | 11am | 4pm | 8:30 pm | 12am (midnight) | 1am |
| 9am | 4pm | 12pm (noon) | 5pm | 9:30 pm | 1am | 2am |
| 10am | 5pm | 1pm | 6pm | 10:30 pm | 2am | 3am |
| 11am | 6pm | 2pm | 7pm | 11:30 pm | 3am | 4am |
| 12pm (noon) | 7pm | 3pm | 8pm | 12:30 am | 4am | 5am |
| 1pm | 8pm | 4pm | 9pm | 1:30 am | 5am | 6am |
| 2pm | 9pm | 5pm | 10pm | 2:30 am | 6am | 7am |
| 3pm | 10pm | 6pm | 11pm | 3:30 am | 7am | 8am |
| 4pm | 11pm | 7pm | 12am (midnight) | 4:30 am | 8am | 9am |
| 5pm | 12am (midnight) | 8pm | 1am | 5:30 am | 9am | 10am |
| 6pm | 1am | 9pm | 2am | 6:30 am | 10am | 11am |
| 7pm | 2am | 10pm | 3am | 7:30 am | 11am | 12pm (noon) |
| 8pm | 3am | 11pm | 4am | 8:30 am | 12pm (noon) | 1pm |
| 9pm | 4am | 12am (midnight) | 5am | 9:30 am | 1pm | 2pm |
| 10pm | 5am | 1am | 6am | 10:30 am | 2pm | 3pm |
| 11pm | 6am | 2am | 7am | 11:30 am | 3pm | 4pm |
| 0:00 | 7:00 | 3:00 | 8:00 | 12:30 | 16:00 | 17:00 |
| 1:00 | 8:00 | 4:00 | 9:00 | 13:30 | 17:00 | 18:00 |
| 2:00 | 9:00 | 5:00 | 10:00 | 14:30 | 18:00 | 19:00 |
| 3:00 | 10:00 | 6:00 | 11:00 | 15:30 | 19:00 | 20:00 |
| 4:00 | 11:00 | 7:00 | 12:00 | 16:30 | 20:00 | 21:00 |
| 5:00 | 12:00 | 8:00 | 13:00 | 17:30 | 21:00 | 22:00 |
| 6:00 | 13:00 | 9:00 | 14:00 | 18:30 | 22:00 | 23:00 |
| 7:00 | 14:00 | 10:00 | 15:00 | 19:30 | 23:00 | 0:00 |
| 8:00 | 15:00 | 11:00 | 16:00 | 20:30 | 0:00 | 1:00 |
| 9:00 | 16:00 | 12:00 | 17:00 | 21:30 | 1:00 | 2:00 |
| 10:00 | 17:00 | 13:00 | 18:00 | 22:30 | 2:00 | 3:00 |
| 11:00 | 18:00 | 14:00 | 19:00 | 23:30 | 3:00 | 4:00 |
| 12:00 | 19:00 | 15:00 | 20:00 | 0:30 | 4:00 | 5:00 |
| 13:00 | 20:00 | 16:00 | 21:00 | 1:30 | 5:00 | 6:00 |
| 14:00 | 21:00 | 17:00 | 22:00 | 2:30 | 6:00 | 7:00 |
| 15:00 | 22:00 | 18:00 | 23:00 | 3:30 | 7:00 | 8:00 |
| 16:00 | 23:00 | 19:00 | 0:00 | 4:30 | 8:00 | 9:00 |
| 17:00 | 0:00 | 20:00 | 1:00 | 5:30 | 9:00 | 10:00 |
| 18:00 | 1:00 | 21:00 | 2:00 | 6:30 | 10:00 | 11:00 |
| 19:00 | 2:00 | 22:00 | 3:00 | 7:30 | 11:00 | 12:00 |
| 20:00 | 3:00 | 23:00 | 4:00 | 8:30 | 12:00 | 13:00 |
| 21:00 | 4:00 | 0:00 | 5:00 | 9:30 | 13:00 | 14:00 |
| 22:00 | 5:00 | 1:00 | 6:00 | 10:30 | 14:00 | 15:00 |
| 23:00 | 6:00 | 2:00 | 7:00 | 11:30 | 15:00 | 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
Universal Time Coordinated
Offset: UTC is 0 hours ahead Greenwich Mean Time (GMT) and is used in Universal
Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but is used by the scientific community.
UTC is the time standard commonly used across the world since 1972. It is used in many technical fields, like aviation industry and meteorologists, also used to synchronize time across internet networks.
UTC 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 UTC
- Z - short form of 'Zulu'
- Etc/UCT
- Etc/UTC
- Etc/Universal
- Etc/Zulu
- UCT
- UTC
- Universal
- Zulu
- 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
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
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
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
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
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