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PDT to IST to JST

PST/PDT
Pacific Standard Time
GMT -8
PDT automatically adjusted to PST time zone, that is in use
IST
India Standard Time
GMT +5:30
JST
Japan Standard Time
GMT +9

Time Difference

Pacific Standard Time is 13 hours and 30 minutes behind India Standard Time and 17 hours behind Japan Standard Time
8:00 pm20:00 in PST is 9:30 am09:30 in IST and is 1:00 pm13:00 in JST

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

8:00 pm20:00 Pacific Standard Time (PST). Offset UTC -8:00 hours
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

8:00 pm20:00 PST / 9:30 am09:30 IST / 1:00 pm13:00 JST

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

PDT Time Zone Geo Map
PDT timezone map

Daylight Saving: Pacific Daylight Time (PDT) is a daylight saving/summer time zone, however during winter some places adjust time for one hour back and observe Pacific Standard Time (PST).

Daylight saving time clock moves back for one hour from 2am to 1amEnd: Pacific Daylight Time (PDT) has ended on Sunday, November 2, 2025 at 2:00 am local time and clocks were 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

Daylight saving time clock moves forward for one hour from 2am to 3amStart: Pacific Daylight Time (PDT) starts on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am. Daylight saving starts annually the on second Sunday of March

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

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 Time Zone Geo Map
IST timezone map

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
  • Irkutsk Standard Time - UTC +8

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 Time Zone Geo Map
JST timezone map

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
EST to IST GMT to EST PST to EST EST to GMT PST to GMT