HAST to PST Converter
HAST is not used on this date
This converter keeps HAST at UTC−10. Adak uses HDT (UTC−9) on this date. Open the HDT converter.Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
2:00 am02:00 HAST (UTC-10), Oct 18, 2026 = 5:00 am05:00 PDT (UTC-7), Oct 18, 2026
HAST is 3 hours behind PDT.
HAST and PST (US winter time, UTC-8) examples
These examples always use HAST (UTC-10) and PST (UTC-8). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
HAST is 2 hours behind PST.
PST is US Pacific winter time (early November to mid-March). The rest of the year Los Angeles uses PDT (UTC-7), one hour later. For Pacific Time that follows daylight saving time, use HAST to PT. For daylight-time examples, use HAST to PDT.
How the time difference changes
For most of the year, HAST is 3 hours behind PDT. From Nov 1, 2026 to Mar 14, 2027, HAST is 2 hours behind PST.
For most of the year, working hours of 9:00 am to 6:00 pm in HAST correspond to 12:00 pm to 9:00 pm in PDT. At other times of the year, working hours of 9:00 am to 6:00 pm in HAST correspond to 11:00 am to 8:00 pm in PST.For most of the year, working hours of 09:00 to 18:00 in HAST correspond to 12:00 to 21:00 in PDT. At other times of the year, working hours of 09:00 to 18:00 in HAST correspond to 11:00 to 20:00 in PST.
Compare HAST time with PST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Hawaii-Aleutian Standard Time is 3 hours behind Pacific Daylight Time.
2:00 am02:00 in HAST is 5:00 am05:00 in PDT
HAST to PDT call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in HAST which corresponds to 12pm-6pm12:00-18:00 in PDT
2:00 am02:00 Hawaii-Aleutian Standard Time (HAST). Offset UTC -10:00 hours
5:00 am05:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
2:00 am02:00 HAST / 5:00 am05:00 PDT
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| HAST | PDT |
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Hawaii-Aleutian Standard Time
Offset: HAST is 10 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: United States
Today the shaded areas are on UTC−9 (HDT).
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Hawaii-Aleutian Daylight Time (HADT).
End: Hawaii-Aleutian Standard Time (HAST) ended 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 local daylight time instead. Standard time ends annually on the second Sunday of March.
Start: Hawaii-Aleutian Standard Time (HAST) starts 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. Standard time starts annually on the first Sunday of November.
See USA daylight saving time and upcoming clock changes worldwide.
HAST representations, usage and related time zones
- -10 - basic short
- -1000 - basic
- -10:00 - extended
- -1000 - sign character (-) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates an offset of ten hours to the west of the zero meridian.
- Whiskey - Military abbreviation for HAST
- W - short form of 'Whiskey'
- HAST - Hawaii-Aleutian Standard Time
- CKT - Cook Island Time
- HST - Hawaii Standard Time
- TAHT - Tahiti Time
- W - Whiskey Time Zone
Pacific Standard Time
Offset: PST is 8 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Mexico, United States
Principal Cities: The largest city in the PST 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
Today the shaded areas are on UTC−7 (PDT).
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Pacific Daylight Time (PDT).
End: Pacific Standard Time (PST) ended 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 local daylight time instead. Standard time ends annually on the second Sunday of March.
Start: Pacific Standard Time (PST) starts 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. Standard time starts annually on the first Sunday of November.
See USA daylight saving time and upcoming clock changes worldwide.
PST representations, usage and related time zones
- -08 - basic short
- -0800 - basic
- -08:00 - extended
- -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.
- Uniform - Military abbreviation for PST
- U - short form of 'Uniform'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- Pacific Standard Time - UTC -8
- Pitcairn Standard Time - UTC -8
- AKDT - Alaska Daylight Time
- PST - Pacific Standard Time
- PT - Pacific Time
- PST - Pitcairn Standard Time
- U - Uniform Time Zone