PST to HST
-2hPST
PSTSOURCEHST
HSTGreen rows indicate typical business hours (9 AM - 5 PM)
PST and HST on the World Map
The map below highlights the PST (Pacific Standard Time) and HST (Hawaii Standard Time) timezone regions across the globe.
PST – Pacific Standard Time
UTC-08:00Pacific Standard Time (PST) is the time zone for the US and Canadian Pacific coast, 8 hours behind UTC.
- •Silicon Valley and the world's biggest tech companies operate on Pacific Time.
- •The Hollywood film industry runs on PST/PDT.
- •PST is 3 hours behind EST, creating a significant business hours gap.
- •Vancouver, Canada's third-largest city, uses PST.
HST – Hawaii Standard Time
UTC-10:00Hawaii Standard Time (HST) is the time zone for the Hawaiian Islands, 10 hours behind UTC.
- •Hawaii does not observe daylight saving time.
- •HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
- •Hawaii is one of only two US states that don't observe DST (the other is Arizona).
Time Conversion Guide: PST to HST
PST runs on Pacific Standard Time (PST) at UTC-08:00. HST runs on Hawaii Standard Time (HST) at UTC-10:00. That puts PST 2 hours behind HST — a difference of -2h at the current offsets.
In practice, when it is 9:00 AM in PST it is 7:00 AM in HST. Midnight in PST is 10:00 PM in HST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
PST to HST time conversion table
| PST (PST) | HST (HST) | Day |
|---|---|---|
| 12:00 AM | 10:00 PM | previous day |
| 6:00 AM | 4:00 AM | same day |
| 7:00 AM | 5:00 AM | same day |
| 8:00 AM | 6:00 AM | same day |
| 9:00 AM | 7:00 AM | same day |
| 12:00 PM | 10:00 AM | same day |
| 3:00 PM | 1:00 PM | same day |
| 5:00 PM | 3:00 PM | same day |
| 6:00 PM | 4:00 PM | same day |
| 9:00 PM | 7:00 PM | same day |
Why people convert PST to HST time
- Scheduling a call from PST to HST: a 10:00 AM start in PST lands at 8:00 AM in HST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both PST and HST are inside the 9-to-5 working day between 11:00 AM and 5:00 PM PST time (9:00 AM–3:00 PM HST). That is roughly 6 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in PST is 6:00 PM in HST makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM PST" is unambiguous; "3 PM" across a -2h gap is not.
- Block 11:00 AM–5:00 PM PST as the recurring meeting window if you work primarily from PST and need HST colleagues present.
About PST (Pacific Standard Time)
Pacific Standard Time (PST) covers the west coast of North America, including tech hubs like San Francisco and Seattle, and entertainment capital Los Angeles. The Pacific Time Zone is home to Silicon Valley and the world's largest technology companies. During summer, clocks advance to Pacific Daylight Time (PDT, UTC-07:00). PST is also observed in Baja California, Mexico.
About HST (Hawaii Standard Time)
Hawaii Standard Time (HST) is used in the state of Hawaii and does not observe daylight saving time. This makes HST one of the most consistent time zones in the US. The Hawaiian Islands are among the last places on Earth to see a new calendar day.
Best time to call between PST and HST
Both PST and HST sit inside the 9 AM – 5 PM working day between 11:00 AM–5:00 PM PST, which is 9:00 AM–3:00 PM HST. That gives roughly 6 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
PST and HST share 6 hours of working-hours overlap (11:00 AM–5:00 PM PST), so scheduling a live meeting is straightforward.
PST is 2 hours behind HST (PST UTC-08:00 → HST UTC-10:00). The shared working window is 11:00 AM–5:00 PM PST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
PST
☀ Currently in DST
Standard: UTC-08:00 · DST: UTC-07:00
Clocks fall back on Sun, Nov 1, 2026
HST
Does not observe DST
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between PST and HST?
PST (PST, UTC-08:00) is 2 hours behind HST (HST, UTC-10:00). The gap is currently -2h.
How do I convert PST time to HST time?
Add -2h to PST local time. For example, 9:00 AM in PST is 7:00 AM in HST.
What time is it in HST right now?
HST uses HST at UTC-10:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -2h offset from PST.
What is the best time to call HST from PST?
Call between 11:00 AM and 5:00 PM PST — that maps to 9:00 AM–3:00 PM HST and keeps both parties inside the working day.
Which is behind, PST or HST?
PST is 2 hours behind HST. When it is 12:00 PM in PST it is 10:00 AM in HST.
Does daylight saving time affect the PST–HST difference?
Neither zone observes daylight saving time, so the -2h offset between PST and HST is fixed all year.
Which other cities share PST's time zone?
PST also covers Los Angeles, San Francisco, Seattle, Vancouver, San Diego, Portland, Las Vegas, Sacramento and 2 more.
Which countries use PST, PST's zone?
PST is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Is there a day difference between PST and HST?
Not normally. The -2h gap only pushes the date over the previous day.
What is the time difference between PST and HST?
HST is -2h from PST.
What timezone is PST in?
PST operates on its local timezone.
What timezone is HST in?
HST operates on its local timezone.
Which countries use PST (Pacific Standard Time)?
PST is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Does PST observe daylight saving time?
Yes, PST switches to PDT during summer months.
What are some interesting facts about PST?
Silicon Valley and the world's biggest tech companies operate on Pacific Time. The Hollywood film industry runs on PST/PDT.
Which cities are in the HST timezone?
Major cities in the HST timezone include Honolulu, Hilo, Kailua, Pearl City, Kapolei.
What is the UTC offset for HST?
Hawaii Standard Time (HST) is at UTC-10:00.
What should I know about the HST timezone?
Hawaii does not observe daylight saving time. HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
When is it midnight in PST, what time is it in HST?
When it is 12:00 AM (midnight) in PST (PST), it is -2h later in HST (HST).
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See every conversion from PST →·See every conversion from HST →