What is the time difference between HST and PHT?

Philippine Time (PHT) is 18 hours ahead of Hawaii Standard Time (HST). HST uses a UTC offset of UTC-10, while PHT uses UTC+8. For example, when it's 9:00 AM in HST, it's 3:00 AM in PHT. This difference remains constant year-round since neither timezone observes daylight saving time. Use the conversion table above to see the exact time for each hour of the day.

How do I convert HST to PHT?

To convert HST to PHT, add 18 hours to the HST time. For example, 9:00 AM HST is 3:00 AM PHT, and 5:00 PM HST is 11:00 AM PHT. Since neither timezone observes DST, this conversion stays the same all year. You can also use the interactive converter above for quick, accurate results.

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

When it's 12:00 PM (noon) in HST, it's 6:00 AM in PHT. This is because PHT is 18 hours ahead of HST. Similarly, when it's 6:00 PM in HST, it's 12:00 PM in PHT. This relationship is constant throughout the year. The color-coded conversion table above shows every hour mapped between both timezones.

How many hours ahead is PHT from HST?

PHT is 18 hours ahead of HST. This means when it's 9:00 AM in HST, it's 3:00 AM in PHT, and when it's midnight in HST, it's 6:00 PM in PHT. This offset is constant throughout the year since neither timezone uses daylight saving time. The conversion table above provides a complete hour-by-hour mapping.

Is PHT ahead or behind HST?

PHT is ahead of HST by 18 hours. Clocks in PHT show a later time than HST, meaning the day starts earlier in PHT relative to HST. For example, when it's morning in HST, it's already afternoon or evening in PHT. This difference stays the same year-round.

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 from HST more predictable. Countries and regions in this timezone keep their clocks unchanged regardless of the season.

Does PHT observe daylight saving time?

No, Philippine Time does not observe daylight saving time. The UTC offset of UTC+8 remains the same year-round, making time conversions to PHT more predictable. Countries and regions in this timezone keep their clocks unchanged regardless of the season.

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

The best time for a call between HST and PHT is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in PHT during their work day, call between 3:00 PM and 11:00 PM your HST time. Avoid calling too early or late, as the 18 hours difference means your evening could be their late night. Check the color-coded conversion table above — green hours indicate business hours in both zones, making it easy to find the ideal time.

Do HST and PHT ever have the same time?

No, HST and PHT are always 18 hours apart and never display the same clock time simultaneously. Neither timezone observes DST, so the difference is constant year-round with no seasonal variation. The 18 hours offset is determined by their fixed positions relative to the Prime Meridian (UTC). You can always rely on this consistent difference when planning across these timezones.

HST to PHT Converter

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

Timezone Details

Hawaii Standard Time

9:31 AM

Friday, July 24, 2026

HST (UTC-10:00)

Philippine Time

3:31 AM

Saturday, July 25, 2026

PHT (UTC+08:00)

Difference: +18 hours

HST DST: No

PHT DST: No

24-Hour Overview

HST — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

PHT — 24-hour overview

6p6p

9p9p

10p

11p

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

PHT to HST

Cities in These Timezones

HST Cities

Honolulu

PHT Cities

Manila Cebu

More Tools

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

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

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