Convert Hawaii Standard Time to Pacific Standard Time
Instantly convert Hawaii Standard Time (HST) to Pacific Standard Time (PST) with our free online calculator.
Hawaii Standard Time
07:20:59 PM
Tue, Jun 23 (HST)
Pacific Standard Time
09:20:59 PM
Tue, Jun 23 (PST)
Convert a Specific Time
24-Hour Comparison
| HST | PST |
|---|---|
| 12:00 AM | 2:00 AM |
| 1:00 AM | 3:00 AM |
| 2:00 AM | 4:00 AM |
| 3:00 AM | 5:00 AM |
| 4:00 AM | 6:00 AM |
| 5:00 AM | 7:00 AM |
| 6:00 AM | 8:00 AM |
| 7:00 AM | 9:00 AM |
| 8:00 AM | 10:00 AM |
| 9:00 AM | 11:00 AM |
| 10:00 AM | 12:00 PM |
| 11:00 AM | 1:00 PM |
| 12:00 PM | 2:00 PM |
| 1:00 PM | 3:00 PM |
| 2:00 PM | 4:00 PM |
| 3:00 PM | 5:00 PM |
| 4:00 PM | 6:00 PM |
| 5:00 PM | 7:00 PM |
| 6:00 PM | 8:00 PM |
| 7:00 PM | 9:00 PM |
| 8:00 PM | 10:00 PM |
| 9:00 PM | 11:00 PM |
| 10:00 PM | 12:00 AM(+1d) |
| 11:00 PM | 1:00 AM(+1d) |
How to Convert Hawaii Standard Time to Pacific Standard Time
Formula
To convert Hawaii Standard Time (HST) to Pacific Standard Time (PST): Convert HST to PST
About Hawaii Standard Time (HST)
Hawaii Standard Time (HST, IANA: Pacific/Honolulu) is the time zone for the State of Hawaii and the Aleutian Islands of Alaska west of 169.5°W. HST is UTC-10:00 year-round and does not observe Daylight Saving Time per Hawaii Revised Statutes §1-31 (Hawaii opted out of the Uniform Time Act of 1966). When the US mainland switches to Daylight Saving Time in March, the offset from Hawaii to the West Coast (Pacific Time) becomes 3 hours instead of the standard 2 hours. Honolulu sees solar noon at approximately 12:30 PM HST in summer. HST is the same offset as Cook Island Time (CKT) and Tahiti Time (TAHT) in French Polynesia, allowing easy mental conversion across the central Pacific. Time-sensitive activities affected by HST include Pacific tsunami warning system coordination per NOAA NTWC, US military operations from Joint Base Pearl Harbor-Hickam, and the Mauna Kea astronomical observatories' nightly observing schedules.
About Pacific Standard Time (PST)
Pacific Standard Time (PST, IANA: America/Los_Angeles) is the standard time zone for the US West Coast and Canadian westernmost provinces, set at UTC-8:00. PST is observed from the first Sunday in November to the second Sunday in March per the Uniform Time Act of 1966; the region switches to Pacific Daylight Time (PDT = UTC-7:00) the rest of the year. PST is used by ~50 million people in California, Oregon, Washington, Nevada (most), British Columbia, Yukon Territory, and the Mexican states of Baja California Norte. Major cities: Los Angeles, San Francisco, San Diego, Seattle, Portland, Sacramento, Las Vegas, Vancouver BC. PST is the time zone of US tech hubs (Silicon Valley, Seattle, Vancouver) — global software-release coordination, Big-Tech corporate-earnings calls, Hollywood production schedules, and NYSE/Nasdaq market hours (PST 06:30-13:00) all reference PST/PDT. Mexico abolished DST nationwide in 2022 except for border zones, complicating Baja conversions.