HST to PST to PHT
Time Difference
Hawaii Standard Time is 3 hours behind Pacific Daylight Time and 18 hours behind Philippine Time
3:30 pm15:30 in HST is 6:30 pm18:30 in PDT and is 9:30 am09:30 in PHT
HST to PST call time
Best time for a conference call or a meeting is between 8am-4pm in HST which corresponds to 10am-6pm in PST
HST to PHT call time
Best time for a conference call or a meeting is between 4am-6am in HST which corresponds to 10pm-12pm in PHT
3:30 pm15:30 Hawaii Standard Time (HST). Offset UTC -10:00 hours
6:30 pm18:30 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
9:30 am09:30 Philippine Time (PHT). Offset UTC +8:00 hours
3:30 pm15:30 HST / 6:30 pm18:30 PDT / 9:30 am09:30 PHT
| HST | PDT | PHT |
|---|---|---|
| 12am (midnight) | 3am | 6pm |
| 1am | 4am | 7pm |
| 2am | 5am | 8pm |
| 3am | 6am | 9pm |
| 4am | 7am | 10pm |
| 5am | 8am | 11pm |
| 6am | 9am | 12am (midnight) |
| 7am | 10am | 1am |
| 8am | 11am | 2am |
| 9am | 12pm (noon) | 3am |
| 10am | 1pm | 4am |
| 11am | 2pm | 5am |
| 12pm (noon) | 3pm | 6am |
| 1pm | 4pm | 7am |
| 2pm | 5pm | 8am |
| 3pm | 6pm | 9am |
| 4pm | 7pm | 10am |
| 5pm | 8pm | 11am |
| 6pm | 9pm | 12pm (noon) |
| 7pm | 10pm | 1pm |
| 8pm | 11pm | 2pm |
| 9pm | 12am (midnight) | 3pm |
| 10pm | 1am | 4pm |
| 11pm | 2am | 5pm |
| 0:00 | 3:00 | 18:00 |
| 1:00 | 4:00 | 19:00 |
| 2:00 | 5:00 | 20:00 |
| 3:00 | 6:00 | 21:00 |
| 4:00 | 7:00 | 22:00 |
| 5:00 | 8:00 | 23:00 |
| 6:00 | 9:00 | 0:00 |
| 7:00 | 10:00 | 1:00 |
| 8:00 | 11:00 | 2:00 |
| 9:00 | 12:00 | 3:00 |
| 10:00 | 13:00 | 4:00 |
| 11:00 | 14:00 | 5:00 |
| 12:00 | 15:00 | 6:00 |
| 13:00 | 16:00 | 7:00 |
| 14:00 | 17:00 | 8:00 |
| 15:00 | 18:00 | 9:00 |
| 16:00 | 19:00 | 10:00 |
| 17:00 | 20:00 | 11:00 |
| 18:00 | 21:00 | 12:00 |
| 19:00 | 22:00 | 13:00 |
| 20:00 | 23:00 | 14:00 |
| 21:00 | 0:00 | 15:00 |
| 22:00 | 1:00 | 16:00 |
| 23:00 | 2:00 | 17:00 |
Hawaii Standard Time
Offset: HST is 10 hours behind Greenwich Mean Time (GMT) and is used in Pacific
Countries: It is used in following countries: United States
Principal Cities: The largest city in the HST timezone is Honolulu from USA with population about 371,657 people. Other major cities in the area are Pearl City, Hilo, Kailua, Waipahu
Daylight Saving: Hawaii Standard Time (HST) is not adjusted for daylight saving therefore HST 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, Hawaii Standard Time remains the same
HST 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 ten hour and zero minutes time differences to the west of the zero meridian.
- Whiskey - Military abbreviation for HST
- W - short form of 'Whiskey'
- America/Adak
- America/Atka
- HST
- Pacific/Honolulu
- Pacific/Johnston
- US/Aleutian
- US/Hawaii
- 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) 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
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).
End: 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.
Start: 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
- -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 eight hour and zero minutes time differences 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
- Peru Standard Time - UTC -5
- AKDT - Alaska Daylight Time
- PST - Pacific Standard Time
- PT - Pacific Time
- PST - Pitcairn Standard Time
- U - Uniform Time Zone
Philippine Time
Offset: PHT is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia
PHT 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 eight hour and zero minutes time differences to the east of the zero meridian.
- Hotel - Military abbreviation for PHT
- H - short form of 'Hotel'
- 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