PDT
Pacific Daylight Time
GMT -7
KST
Korea Standard Time
GMT +9
UTC
Universal Time Coordinated
GMT +0

Time Difference

Pacific Daylight Time is 16 hours behind Korea Standard Time and 7 hours behind Universal Time Coordinated
3:00 am03:00 in PDT is 7:00 pm19:00 in KST and is 10:00 am10:00 in UTC

PDT to KST call time
Best time for a conference call or a meeting is between 5am-7am in PDT which corresponds to 9pm-11pm in KST
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

3:00 am03:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
7:00 pm19:00 Korea Standard Time (KST). Offset UTC +9:00 hours
10:00 am10:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours

3:00 am03:00 PDT / 7:00 pm19:00 KST / 10:00 am10:00 UTC

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

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 timezone, however during winter some places switch clocks for one hour back and observe Pacific Standard Time (PST).

Daylight saving time clock moves forward for one hour from 2am to 3amStart: Pacific Daylight Time (PDT) started on Sunday, March 14, 2021 at 2:00 am local time and clocks were set one hour forward to Sunday, March 14, 2021, 3:00 am. Daylight saving starts annually the on second Sunday of March

Daylight saving time clock moves back for one hour from 2am to 1amEnd: Pacific Daylight Time (PDT) ends on Sunday, November 7, 2021 at 2:00 am local time and clocks are set one hour back to Sunday, November 7, 2021, 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

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
  • Krasnoyarsk Standard Time - UTC +6
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

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

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for UTC
  • Z - short form of 'Zulu'
IANA/Olson: Reflects UTC time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Etc/UCT
  • Etc/UTC
  • Etc/Universal
  • Etc/Zulu
  • UCT
  • UTC
  • Universal
  • Zulu
Time zones with the GMT +0 offset:
  • 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