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PT/PDT
12am
3am
6am
9am
12pm
3pm
6pm
9pm
HADT
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

5:00 am05:00 PDT (UTC-7), Oct 18, 2026 = 3:00 am03:00 HADT (UTC-9), Oct 18, 2026

PDT is 2 hours ahead of HADT.

How the time difference changes

For most of the year, PT is 2 hours ahead of HADT. From Nov 1, 2026 to Mar 14, 2027, PT is 2 hours ahead of HST. Briefly around clock changes, PT is 3 hours ahead of HST or PT is 1 hour ahead of HADT.

For most of the year, working hours of 9:00 am to 6:00 pm in PT correspond to 7:00 am to 4:00 pm in HADT. At other times of the year, working hours of 9:00 am to 6:00 pm in PT correspond to 7:00 am to 4:00 pm in HST.For most of the year, working hours of 09:00 to 18:00 in PT correspond to 07:00 to 16:00 in HADT. At other times of the year, working hours of 09:00 to 18:00 in PT correspond to 07:00 to 16:00 in HST.

Compare PT time with HADT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Pacific Daylight Time is 2 hours ahead of Hawaii-Aleutian Daylight Time.
5:00 am05:00 in PDT is 3:00 am03:00 in HADT

PDT to HADT call time
Best time for a conference call or a meeting is between 11am-6pm11:00-18:00 in PDT which corresponds to 9am-4pm09:00-16:00 in HADT

5:00 am05:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
3:00 am03:00 Hawaii-Aleutian Daylight Time (HADT). Offset UTC -9:00 hours

5:00 am05:00 PDT / 3:00 am03:00 HADT

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Hourly time comparison
PTHADT
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Pacific Time

Pacific Time (PT) is a general term used to describe the areas that observe either the Pacific Standard Time (PST) or Pacific Daylight Time (PDT) in North America. PT also called Pacific Coast Time. PT is not static but switches between PDT and PST.

Territories observing the Pacific Time Zone are primarily in North America. It runs through the western United States and the Northwestern part of Mexico. From November 1, 2026, most of British Columbia in Canada keeps UTC-7 all year instead.

Countries using this time zone: Mexico, United States

Principal Cities: The largest city in the PT time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.

French: HNP - Heure Normale du Pacifique

Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste

PT 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 an offset of eight hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Uniform - Military abbreviation for PT
  • U - short form of 'Uniform'
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

Hawaii-Aleutian Daylight Time

Offset: HADT is 9 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: United States

Map of the areas on Hawaii-Aleutian Daylight Time (HADT)
HADT part of the year

Today all shaded areas are on HADT.

Daylight Saving: Hawaii-Aleutian Daylight Time (HADT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Hawaii-Aleutian Standard Time (HAST).

123456789101112Start: Hawaii-Aleutian Daylight Time (HADT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

123456789101112End: Hawaii-Aleutian Daylight Time (HADT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.

See USA daylight saving time and upcoming clock changes worldwide.

HADT 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 an offset of nine hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Victor - Military abbreviation for HADT
  • V - short form of 'Victor'
Time zones with the GMT -9 offset:
  • AKST - Alaska Standard Time
  • AHDT - Alaska-Hawaii Daylight Time
  • HADT - Hawaii-Aleutian Daylight Time
  • GAMT - Gambier Time
  • HDT - Hawaii Daylight Time
  • V - Victor Time Zone