PST to HST Time Converter
HST is 3 hours behind PST. The US West Coast is currently on PDT (UTC-7:00), and HST is UTC-10:00.
Best Time to Call Between PST and HST
Both zones are inside normal business hours between 12:00 PM and 5:00 PM PST — that's 9:00 AM to 2:00 PM HST. That's a 5-hour window.
both at work PST only HST only neither — hours along the strip are PST.
Common Times Converted
PST on the left, HST on the right.
PST to HST: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| PST | HST | Working hours |
|---|---|---|
| 12:00 AM | 9:00 PM prev day | — |
| 1:00 AM | 10:00 PM prev day | — |
| 2:00 AM | 11:00 PM prev day | — |
| 3:00 AM | 12:00 AM | — |
| 4:00 AM | 1:00 AM | — |
| 5:00 AM | 2:00 AM | — |
| 6:00 AM | 3:00 AM | — |
| 7:00 AM | 4:00 AM | — |
| 8:00 AM | 5:00 AM | — |
| 9:00 AM | 6:00 AM | PST only |
| 10:00 AM | 7:00 AM | PST only |
| 11:00 AM | 8:00 AM | PST only |
| 12:00 PM | 9:00 AM | Both zones |
| 1:00 PM | 10:00 AM | Both zones |
| 2:00 PM | 11:00 AM | Both zones |
| 3:00 PM | 12:00 PM | Both zones |
| 4:00 PM | 1:00 PM | Both zones |
| 5:00 PM | 2:00 PM | HST only |
| 6:00 PM | 3:00 PM | HST only |
| 7:00 PM | 4:00 PM | HST only |
| 8:00 PM | 5:00 PM | — |
| 9:00 PM | 6:00 PM | — |
| 10:00 PM | 7:00 PM | — |
| 11:00 PM | 8:00 PM | — |
What PST and HST Actually Are
PST — Pacific Standard Time
Los Angeles, San Francisco, Seattle, Las Vegas, Vancouver. Standing at UTC-8:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to PST. The Philippines occasionally uses PST for Philippine Standard Time (UTC+8); PHT is the clearer label for that.
California voted in 2018 to move to permanent daylight time, but the change needs an act of Congress and has never happened, so PST is still the winter standard.
HST — Hawaii Standard Time
Honolulu and the rest of Hawaii. Standing at UTC-10:00 as written, and the region does not change its clocks, so that offset holds all year. Hawaii does not observe daylight saving, so this offset holds all year.
Hawaii dropped daylight saving in 1967 and never resumed it. Being close to the equator, its daylight barely varies across the year, so there is little to gain.
What This Means in Practice
This gap is not fixed
PST changes its clocks and HST does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, November 1, 2026 unless someone resets it.
Major Cities in Each Zone
Cities on PST
Cities on HST
Frequently Asked Questions
What is the time difference between PST and HST?
HST is 3 hours behind PST. That is the live figure. Taken strictly as written, the gap between PST and HST is 2 hours — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM PST in HST?
9:00 AM PST is 6:00 AM HST.
What are the best hours to schedule a call between PST and HST?
Between 12:00 PM and 5:00 PM PST, which is 9:00 AM to 2:00 PM HST. Both sides are inside normal business hours through that window.
Does the difference between PST and HST change during the year?
Yes. PST observes daylight saving and HST does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, November 1, 2026.
Does PST always mean Pacific Standard Time?
The Philippines occasionally uses PST for Philippine Standard Time (UTC+8); PHT is the clearer label for that.
Does HST always mean Hawaii Standard Time?
Hawaii does not observe daylight saving, so this offset holds all year.