What is the time difference between PST and HST?

Hawaii Standard Time (HST) is 3 hours behind Pacific Standard Time (PST). PST uses a UTC offset of UTC-7, while HST uses UTC-10. For example, when it's 9:00 AM in PST, it's 6:00 AM in HST. Note that this difference may shift by one hour during daylight saving time transitions if PST observes DST. Use the conversion table above to see the exact time for each hour of the day.

How do I convert PST to HST?

To convert PST to HST, subtract 3 hours from the PST time. For example, 9:00 AM PST is 6:00 AM HST, and 5:00 PM PST is 2:00 PM HST. Keep in mind that during daylight saving time transitions, the offset between these timezones may temporarily change by one hour. You can also use the interactive converter above for quick, accurate results.

What time is it in HST when it's noon in PST?

When it's 12:00 PM (noon) in PST, it's 9:00 AM in HST. This is because HST is 3 hours behind PST. Similarly, when it's 6:00 PM in PST, it's 3:00 PM in HST. During daylight saving time transitions, these times may shift by one hour, so always verify the current offset. The color-coded conversion table above shows every hour mapped between both timezones.

How many hours behind is HST from PST?

HST is 3 hours behind PST. This means when it's 9:00 AM in PST, it's 6:00 AM in HST, and when it's midnight in PST, it's 9:00 PM in HST. The exact difference can vary by one hour during daylight saving time transitions. The conversion table above provides a complete hour-by-hour mapping.

Is HST ahead or behind PST?

HST is behind PST by 3 hours. Clocks in HST show an earlier time than PST, meaning the day starts later in HST relative to PST. For example, when it's noon in PST, it's still 9:00 AM in HST. This gap may change by one hour during DST transitions.

Does PST observe daylight saving time?

Yes, Pacific Standard Time observes daylight saving time. During DST, the abbreviation changes to PDT and clocks move forward by one hour, typically in spring. Clocks then fall back in autumn, returning to standard PST time. This means the UTC offset for PST shifts between two values depending on the season. Check our DST change calendar for exact transition dates that may affect your PST to HST conversions.

Does HST observe daylight saving time?

No, Hawaii Standard Time does not observe daylight saving time. The UTC offset of UTC-10 remains the same year-round, making time conversions to HST more predictable. Countries and regions in this timezone keep their clocks unchanged regardless of the season.

What is the best time to call from PST to HST?

The best time for a call between PST and HST is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in HST during their work day, call between 12:00 PM and 8:00 PM your PST time. Avoid calling too early or late, as the 3 hours difference means your evening could be their early morning. Check the color-coded conversion table above — green hours indicate business hours in both zones, making it easy to find the ideal time.

When does daylight saving time change in PST?

Daylight saving time transitions vary by year and region. Pacific Standard Time observes DST, which typically shifts clocks forward by one hour in spring ("spring forward") and back in fall ("fall back"). During these transition periods, the time difference between PST and HST may temporarily change by one hour, which can cause confusion for scheduled meetings or calls. It's important to double-check your conversions around transition dates, especially if the two timezones switch on different dates. Check our DST change calendar for exact transition dates in the current year.

Do PST and HST ever have the same time?

No, PST and HST never show the same time because their base UTC offsets are different. However, because PST observes daylight saving time and HST does not, the time difference between them changes by one hour during DST transitions. This means the gap narrows or widens depending on the season, but the two clocks never align. Always verify the current offset around DST transition dates to avoid scheduling errors.

PST to HST Converter

Convert Pacific Standard Time to Hawaii Standard Time. See the hour-by-hour conversion table below.

Timezone Details

Pacific Standard Time

8:45 AM

Thursday, April 2, 2026

PDT (UTC-07:00)

Hawaii Standard Time

5:45 AM

Thursday, April 2, 2026

HST (UTC-10:00)

Difference: -3 hours

PDT DST: Yes (PDT)

HST DST: No

24-Hour Overview

PDT — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

HST — 24-hour overview

9p9p

10p

11p

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

HST to PST EST to PST PST to EST PST to GMT GMT to PST PST to IST IST to PST PST to JST JST to PST

Cities in These Timezones

PST Cities

Los Angeles San Diego San Francisco Seattle Las Vegas

HST Cities

Honolulu

More Tools

Compare PST & HST Plan a Meeting (PST & HST)See on Map

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

Pacific Standard Time on Wikipedia Hawaii Standard Time on Wikipedia IANA Time Zone Database