HST to PST Time Converter
Convert Hawaii Standard Time to Pacific Time (US). Right now, HST is 3 hours behind PST.
Time Zone Converter
Click any hour to see what it lands on in every city. The first row's hours run 12am to 11pm — every other row is its local time at the same instant.
When it's this time in Honolulu:
| Honolulu | San Francisco |
|---|---|
| 6:00 AM | 9:00 AM |
| 9:00 AM | 12:00 PM |
| 12:00 PM | 3:00 PM |
| 3:00 PM | 6:00 PM |
| 6:00 PM | 9:00 PM |
| 9:00 PM | 12:00 AM |
About HST and PST
HST (Hawaii Standard Time) covers USA (Hawaii) and is anchored to the IANA zone Pacific/Honolulu. It does not observe daylight saving time — the offset stays fixed all year.
PST (Pacific Time (US)) covers USA and Canada via America/Los_Angeles. It observes daylight saving time, so the gap between these two zones shifts twice a year.
Because at least one of these zones uses DST, the time difference between HST and PST is not constant — it shifts by an hour during the spring and autumn DST transitions. The hour grid below recomputes the difference for any specific date you click, using the IANA rules baked into your browser.
FAQ
- How many hours difference between HST and PST?
- Right now, HST is 3 hours behind PST. Because at least one of these zones observes daylight saving time, the gap shifts by an hour twice a year (spring and autumn). The hour grid above recomputes correctly for any specific date.
- What time is 9 AM HST in PST?
- 9 AM HST (Honolulu) is 12:00 PM PST (San Francisco) today. Click any cell in the grid above to convert other times — the math handles DST and half-hour offsets correctly.
- Does HST observe daylight saving time?
- No. Hawaii Standard Time stays at a fixed offset year-round. The hour grid above will show the same difference whether you check in summer or winter.
- What's the IANA timezone identifier for HST and PST?
- HST → Pacific/Honolulu. PST → America/Los_Angeles. We use IANA identifiers (not GMT offsets) as the source of truth so historical and future dates remain accurate, including across DST changes and political timezone shifts.
- Where can I see the overlap between HST and PST working hours?
- Click "Working hrs" in the toolbar above to highlight hours where all selected cities have overlapping business hours. The amber highlight shows which columns work for scheduling meetings across time zones.
- Which countries use HST and PST?
- HST (Hawaii Standard Time) is used in USA (Hawaii). PST (Pacific Time (US)) is used in USA and Canada. If you're converting time between any of these countries, this is the right page.