KST
Korea Standard Time
GMT +9
PDT/PST
Pacific Daylight Time
GMT -7
PST automatically adjusted to PDT time zone, that is in use
ICT
Indochina Time
GMT +7
WITA
Central Indonesian Time
GMT +8

Time Difference

Korea Standard Time is 16 hours ahead of Pacific Daylight Time and 2 hours ahead of Indochina Time and 1 hour ahead of Central Indonesian Time
8:00 pm20:00 in KST is 4:00 am04:00 in PDT and is 6:00 pm18:00 in ICT and is 7:00 pm19:00 in WITA

KST to PST call time
Best time for a conference call or a meeting is between 9:30pm-11:30pm in KST which corresponds to 4:30am-6:30am in PST
KST to ICT call time
Best time for a conference call or a meeting is between 10am-6pm in KST which corresponds to 8am-4pm in ICT
KST to WITA call time
Best time for a conference call or a meeting is between 9am-6pm in KST which corresponds to 8am-5pm in WITA

8:00 pm20:00 Korea Standard Time (KST). Offset UTC +9:00 hours
4:00 am04:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
6:00 pm18:00 Indochina Time (ICT). Offset UTC +7:00 hours
7:00 pm19:00 Central Indonesian Time (WITA). Offset UTC +8:00 hours

8:00 pm20:00 KST / 4:00 am04:00 PDT / 6:00 pm18:00 ICT / 7:00 pm19:00 WITA

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

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

KST Time Zone Geo Map
KST timezone map

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

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 Time Zone Geo Map
PST timezone map

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).

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: Pacific Standard Time (PST) has ended 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 local daylight time instead. Standard time ends annually the on second Sunday of March.

Daylight saving time clock moves back for one hour from 2am to 1amStart: Pacific Standard Time (PST) starts 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. 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

Indochina Time

Offset: ICT is 7 hours ahead Greenwich Mean Time (GMT) and is used in Asia

ICT Time Zone Geo Map
ICT timezone map

ICT 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 east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Golf - Military abbreviation for ICT
  • G - short form of 'Golf'
Time zones with the GMT +7 offset:
  • CXT - Christmas Island Time
  • DAVT - Davis Time
  • G - Golf Time Zone
  • HOVT - Hovd Time
  • ICT - Indochina Time
  • KRAT - Krasnoyarsk Time
  • NOVST - Novosibirsk Summer Time
  • NOVT - Novosibirsk Time
  • OMSST - Omsk Summer Time
  • WIB - Western Indonesian Time

Central Indonesian Time

Offset: WITA is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries: It is used in following countries: Indonesia

Principal Cities: The largest city in the WITA timezone is Makassar from Indonesia with population about 1.322 million people. Other major cities in the area are City of Balikpapan, Banjarmasin, Manado, Balikpapan

Daylight Saving: Central Indonesian Time (WITA) is not adjusted for daylight saving therefore WITA 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, Central Indonesian Time remains the same

WITA Time Zone Geo Map
WITA timezone map

WITA 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 east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Hotel - Military abbreviation for WITA
  • H - short form of 'Hotel'
IANA/Olson: Reflects WITA time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Makassar
  • Asia/Ujung_Pandang
Time zones with the GMT +8 offset:
  • ACT - ASEAN Common Time
  • AWST - Australian Western Standard Time
  • BNT - Brunei Darussalam Time
  • CAST - Casey Time
  • CHOT - Choibalsan Time
  • CST - China Standard Time
  • H - Hotel Time Zone
  • HKT - Hong Kong Time
  • HOVST - Hovd Summer Time
  • IRKT - Irkutsk Time
  • KRAST - Krasnoyarsk Summer Time
  • MYT - Malaysia Time
  • PHT - Philippine Time
  • SGT - Singapore Time
  • ULAT - Ulaanbaatar Time
  • WITA - Central Indonesian Time