What is the time difference between PHT and HST?

Hawaii Standard Time (HST) is 18 hours behind Philippine Time (PHT). PHT uses a UTC offset of UTC+8, while HST uses UTC-10. For example, when it's 9:00 AM in PHT, it's 3:00 PM in HST. 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 PHT to HST?

To convert PHT to HST, subtract 18 hours from the PHT time. For example, 9:00 AM PHT is 3:00 PM HST, and 5:00 PM PHT is 11:00 PM HST. 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 HST when it's noon in PHT?

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

How many hours behind is HST from PHT?

HST is 18 hours behind PHT. This means when it's 9:00 AM in PHT, it's 3:00 PM in HST, and when it's midnight in PHT, it's 6:00 AM in HST. 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 HST ahead or behind PHT?

HST is behind PHT by 18 hours. Clocks in HST show an earlier time than PHT, meaning the day starts later in HST relative to PHT. For example, when it's noon in PHT, it's still 6:00 PM in HST. This difference stays the same year-round.

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

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 PHT to HST?

The best time for a call between PHT 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 3:00 AM and 11:00 AM your PHT time. Avoid calling too early or late, as the 18 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.

Do PHT and HST ever have the same time?

No, PHT and HST 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.

PHT to HST Converter

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

Timezone Details

Philippine Time

1:03 PM

Friday, April 3, 2026

PHT (UTC+08:00)

Hawaii Standard Time

7:03 PM

Thursday, April 2, 2026

HST (UTC-10:00)

Difference: -18 hours

PHT DST: No

HST DST: No

24-Hour Overview

PHT — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

HST — 24-hour overview

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

12a12a

3a3a

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

HST to PHT

Cities in These Timezones

PHT Cities

Manila Cebu

HST Cities

Honolulu

More Tools

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

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

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