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- PDT to BST to IST to EST
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PDT
Pacific Daylight Time
GMT -7
BST
British Summer Time
GMT +1
IST
India Standard Time
GMT +5:30
EDT/EST
Eastern Daylight Time
GMT -4
EST automatically adjusted to EDT time zone, that is in use
Time Difference
Pacific Daylight Time is 8 hours behind British Summer Time and 12 hours and 30 minutes behind India Standard Time and 3 hours behind Eastern Daylight Time
8:30 pm20:30 in PDT is 4:30 am04:30 in BST and is 9:00 am09:00 in IST and is 11:30 pm23:30 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 EST call time
Best time for a conference call or a meeting is between 8am-4pm in PDT which corresponds to 10am-6pm in EST
8:30 pm20:30 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
4:30 am04:30 British Summer Time (BST). Offset UTC +1:00 hour
9:00 am09:00 India Standard Time (IST). Offset UTC +5:30 hours
11:30 pm23:30 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
8:30 pm20:30 PDT / 4:30 am04:30 BST / 9:00 am09:00 IST / 11:30 pm23:30 EDT
| PDT | BST | IST | EDT |
|---|---|---|---|
| 12am (midnight) | 8am | 12:30 pm | 3am |
| 1am | 9am | 1:30 pm | 4am |
| 2am | 10am | 2:30 pm | 5am |
| 3am | 11am | 3:30 pm | 6am |
| 4am | 12pm (noon) | 4:30 pm | 7am |
| 5am | 1pm | 5:30 pm | 8am |
| 6am | 2pm | 6:30 pm | 9am |
| 7am | 3pm | 7:30 pm | 10am |
| 8am | 4pm | 8:30 pm | 11am |
| 9am | 5pm | 9:30 pm | 12pm (noon) |
| 10am | 6pm | 10:30 pm | 1pm |
| 11am | 7pm | 11:30 pm | 2pm |
| 12pm (noon) | 8pm | 12:30 am | 3pm |
| 1pm | 9pm | 1:30 am | 4pm |
| 2pm | 10pm | 2:30 am | 5pm |
| 3pm | 11pm | 3:30 am | 6pm |
| 4pm | 12am (midnight) | 4:30 am | 7pm |
| 5pm | 1am | 5:30 am | 8pm |
| 6pm | 2am | 6:30 am | 9pm |
| 7pm | 3am | 7:30 am | 10pm |
| 8pm | 4am | 8:30 am | 11pm |
| 9pm | 5am | 9:30 am | 12am (midnight) |
| 10pm | 6am | 10:30 am | 1am |
| 11pm | 7am | 11:30 am | 2am |
| 0:00 | 8:00 | 12:30 | 3:00 |
| 1:00 | 9:00 | 13:30 | 4:00 |
| 2:00 | 10:00 | 14:30 | 5:00 |
| 3:00 | 11:00 | 15:30 | 6:00 |
| 4:00 | 12:00 | 16:30 | 7:00 |
| 5:00 | 13:00 | 17:30 | 8:00 |
| 6:00 | 14:00 | 18:30 | 9:00 |
| 7:00 | 15:00 | 19:30 | 10:00 |
| 8:00 | 16:00 | 20:30 | 11:00 |
| 9:00 | 17:00 | 21:30 | 12:00 |
| 10:00 | 18:00 | 22:30 | 13:00 |
| 11:00 | 19:00 | 23:30 | 14:00 |
| 12:00 | 20:00 | 0:30 | 15:00 |
| 13:00 | 21:00 | 1:30 | 16:00 |
| 14:00 | 22:00 | 2:30 | 17:00 |
| 15:00 | 23:00 | 3:30 | 18:00 |
| 16:00 | 0:00 | 4:30 | 19:00 |
| 17:00 | 1:00 | 5:30 | 20:00 |
| 18:00 | 2:00 | 6:30 | 21:00 |
| 19:00 | 3:00 | 7:30 | 22:00 |
| 20:00 | 4:00 | 8:30 | 23:00 |
| 21:00 | 5:00 | 9:30 | 0:00 |
| 22:00 | 6:00 | 10:30 | 1:00 |
| 23:00 | 7:00 | 11:30 | 2:00 |
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 10, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 10, 2024, 3:00 am. Daylight saving starts annually the on second Sunday of March
End: Pacific Daylight Time (PDT) ends on Sunday, November 3, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, November 3, 2024, 1:00 am local standard time instead. Daylight saving ends annually the on first Sunday of November
PDT representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- -07 - basic short
- -0700 - basic
- -07:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- -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.
Military/NATO: Used by the U.S. military, Chinese military and others
- Tango - Military abbreviation for PDT
- T - short form of 'Tango'
IANA/Olson: Reflects PDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
Time zones with the GMT -7 offset:
- 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 31, 2024 at 1:00 am local time and clocks were set one hour forward to Sunday, March 31, 2024, 2:00 am. Daylight saving starts annually the on last Sunday of March
End: British Summer Time (BST) ends on Sunday, October 27, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, October 27, 2024, 1:00 am local standard time instead. Daylight saving ends annually the on last Sunday of October
BST representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- +01 - basic short
- +0100 - basic
- +01:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +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.
Military/NATO: Used by the U.S. military, Chinese military and others
- Alpha - Military abbreviation for BST
- A - short form of 'Alpha'
IANA/Olson: Reflects BST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- Europe/Belfast
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
BST Abbreviation: Several time zones share BST abbreviation and it could refer to these time zones
- British Summer Time - UTC +1
- Bangladesh Standard Time - UTC +6
- Bougainville Standard Time - UTC +11
- Brasilia Standard Time - UTC -3
Time zones with the GMT +1 offset:
- 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
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- +0530 - basic
- +05:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +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.
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- Asia/Calcutta
- Asia/Kolkata
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
- Iran Standard Time - UTC +3:30
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 10, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 10, 2024, 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 3, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, November 3, 2024, 1:00 am. Standard time starts annually the on first Sunday of November.
EST representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- -05 - basic short
- -0500 - basic
- -05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- -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.
Military/NATO: Used by the U.S. military, Chinese military and others
- Romeo - Military abbreviation for EST
- R - short form of 'Romeo'
IANA/Olson: Reflects EST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- 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
Time zones with the GMT -5 offset:
- 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
EST to IST GMT to EST PST to EST EST to GMT PST to GMT
