PST to IST to JST to KST (2024)

PDT/PST

Pacific Daylight Time

GMT -7

PST automatically adjusted to PDT time zone, that is in use

JST

Japan Standard Time

GMT +9

KST

Korea Standard Time

GMT +9

Time Difference

Pacific Daylight Time is 12 hours and 30 minutes behind India Standard Time and 16 hours behind Japan Standard Time and 16 hours behind Korea Standard Time
12:00 pm12:00 in PDT is 12:30 am00:30 in IST and is 4:00 am04:00 in JST and is 4:00 am04:00 in KST

PST to IST call time
Best time for a conference call or a meeting is between 6am-8am in PST which corresponds to 7:30pm-9:30pm in IST
PST to JST call time
Best time for a conference call or a meeting is between 4:30am-6:30am in PST which corresponds to 9:30pm-11:30pm in JST
PST to KST call time
Best time for a conference call or a meeting is between 4:30am-6:30am in PST which corresponds to 9:30pm-11:30pm in KST

12:00 pm12:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
12:30 am00:30 India Standard Time (IST). Offset UTC +5:30 hours
4:00 am04:00 Japan Standard Time (JST). Offset UTC +9:00 hours
4:00 am04:00 Korea Standard Time (KST). Offset UTC +9:00 hours

12:00 pm12:00 PDT / 12:30 am00:30 IST / 4:00 am04:00 JST / 4:00 am04:00 KST

PDT IST JST KST
12am (midnight) 12:30 pm 4pm 4pm
1am 1:30 pm 5pm 5pm
2am 2:30 pm 6pm 6pm
3am 3:30 pm 7pm 7pm
4am 4:30 pm 8pm 8pm
5am 5:30 pm 9pm 9pm
6am 6:30 pm 10pm 10pm
7am 7:30 pm 11pm 11pm
8am 8:30 pm 12am (midnight) 12am (midnight)
9am 9:30 pm 1am 1am
10am 10:30 pm 2am 2am
11am 11:30 pm 3am 3am
12pm (noon) 12:30 am 4am 4am
1pm 1:30 am 5am 5am
2pm 2:30 am 6am 6am
3pm 3:30 am 7am 7am
4pm 4:30 am 8am 8am
5pm 5:30 am 9am 9am
6pm 6:30 am 10am 10am
7pm 7:30 am 11am 11am
8pm 8:30 am 12pm (noon) 12pm (noon)
9pm 9:30 am 1pm 1pm
10pm 10:30 am 2pm 2pm
11pm 11:30 am 3pm 3pm
0:00 12:30 16:00 16:00
1:00 13:30 17:00 17:00
2:00 14:30 18:00 18:00
3:00 15:30 19:00 19:00
4:00 16:30 20:00 20:00
5:00 17:30 21:00 21:00
6:00 18:30 22:00 22:00
7:00 19:30 23:00 23:00
8:00 20:30 0:00 0:00
9:00 21:30 1:00 1:00
10:00 22:30 2:00 2:00
11:00 23:30 3:00 3:00
12:00 0:30 4:00 4:00
13:00 1:30 5:00 5:00
14:00 2:30 6:00 6:00
15:00 3:30 7:00 7:00
16:00 4:30 8:00 8:00
17:00 5:30 9:00 9:00
18:00 6:30 10:00 10:00
19:00 7:30 11:00 11:00
20:00 8:30 12:00 12:00
21:00 9:30 13:00 13:00
22:00 10:30 14:00 14:00
23:00 11:30 15:00 15:00

Pacific Standard Time

Offset: PST is 8 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 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

PST to IST to JST to KST (1)

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 Pacific Daylight Time (PDT).

PST to IST to JST to KST (2)End: Pacific Standard Time (PST) 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.

PST to IST to JST to KST (3)Start: Pacific Standard Time (PST) 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.

PST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data

  • -08 - basic short
  • -0800 - basic
  • -08:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers

  • -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.

Military/NATO: Used by the U.S. military, Chinese military and others

  • Uniform - Military abbreviation for PST
  • U - short form of 'Uniform'

IANA/Olson: Reflects PST 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

PST Abbreviation: Several time zones share PST abbreviation and it could refer to these time zones

  • Pacific Standard Time - UTC -8
  • Pitcairn Standard Time - UTC -8
  • Peru Standard Time - UTC -5

Time zones with the GMT -8 offset:

  • AKDT - Alaska Daylight Time
  • PST - Pacific Standard Time
  • PT - Pacific Time
  • PST - Pitcairn Standard Time
  • U - Uniform Time Zone

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

PST to IST to JST to KST (4)

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

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

PST to IST to JST to KST (5)

JST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data

  • +09 - basic short
  • +0900 - basic
  • +09:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers

  • +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.

Military/NATO: Used by the U.S. military, Chinese military and others

  • India - Military abbreviation for JST
  • I - short form of 'India'

IANA/Olson: Reflects JST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems

  • Asia/Tokyo
  • Japan

Time zones with the GMT +9 offset:

  • 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

Korea Standard Time

Offset: KST is 9 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries: It is used in following countries: Korea (North), Korea (South)

Principal Cities: The largest city in the KST timezone is Seoul from South Korea with population about 10.349 million people. Other major cities in the area are Busan, Pyongyang, Incheon, Daegu

Daylight Saving: Korea Standard Time (KST) is not adjusted for daylight saving therefore KST 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, Korea Standard Time remains the same

PST to IST to JST to KST (6)

KST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data

  • +09 - basic short
  • +0900 - basic
  • +09:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers

  • +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.

Military/NATO: Used by the U.S. military, Chinese military and others

  • India - Military abbreviation for KST
  • I - short form of 'India'

IANA/Olson: Reflects KST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems

  • Asia/Pyongyang
  • Asia/Seoul
  • ROK

KST Abbreviation: Several time zones share KST abbreviation and it could refer to these time zones

  • Korea Standard Time - UTC +9
  • Pyongyang Time - UTC +8:30

Time zones with the GMT +9 offset:

  • 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
PST to IST to JST to KST (2024)
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