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PDT
Pacific Daylight Time
GMT -7
ET/EDT
Eastern Time
GMT -4

Time Difference

Pacific Daylight Time is 3 hours behind of Eastern Daylight Time
So 6:30 pm18:30 in PDT is 9:30 pm21:30 in EDT

6:30 pm18:30 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
9:30 pm21:30 Eastern Daylight Time (EDT). Offset UTC -4:00 hours

6:30 pm18:30 PDT / 9:30 pm21:30 EDT

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

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) starts annually on the same date and time. and clocks were set one hour forward on Sunday, March 10, 2019, at 2:00 (2:00 am) local time.

End: Pacific Daylight Time (PDT) ends annually on the same date and time. and clocks are set one hour back on Sunday, November 3, 2019, at 2:00 (2:00 am) local time.

French: HAP - Heure Avancée du Pacifique

Spanish: PT - Zona Noroeste

PDT Time Zone Geo Map
PDT timezone map
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/Dawson
  • America/Ensenada
  • America/Los_Angeles
  • America/Santa_Isabel
  • America/Tijuana
  • America/Vancouver
  • America/Whitehorse
  • Canada/Pacific
  • Canada/Yukon
  • Mexico/BajaNorte
  • PST8PDT
  • US/Pacific
  • US/Pacific-New

Time zones with the GMT -7 offset:

  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • T - Tango Time Zone


Eastern Time

Eastern Time (ET) is a general term used to describe the areas that observe either the Eastern Standard Time (EST) or Eastern Daylight Time (EDT) in the United States and Canada. ET is not static but switches between EDT and EST.

ET is also used somewhat as a de facto official time for all of the United States because it encompasses 17 U.S. states in the eastern part of the contiguous United States including the capital city Washington D.C., the most populous city New York and half of the country’s population.

In the United States nationally televised programs, evening newscasts, talent and awards shows, and any other nationally televised event that airs live on American television during prime time and on the weekends are broadcast live in the Eastern Time Zone. Major professional sports leagues MLB, NBA, NFL and NHL also provide their game times in Eastern Time, even if teams are from outside of Eastern Time.

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

ET 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 ET
  • R - short form of 'Romeo'

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

  • Eastern Time - UTC -5
  • Tiempo del Este - UTC -5

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
  • -05 -