PHT to HST
Hawaii Standard Time is 18 hours behind Philippine Time, all year round.
PHT to HST conversion table
Every hour of the day, Philippine Time to Hawaii Standard Time. The gap never changes, so this table holds on every date.
| PHT | HST |
|---|---|
| 12:00 AM | 6:00 AM −1 day |
| 1:00 AM | 7:00 AM −1 day |
| 2:00 AM | 8:00 AM −1 day |
| 3:00 AM | 9:00 AM −1 day |
| 4:00 AM | 10:00 AM −1 day |
| 5:00 AM | 11:00 AM −1 day |
| 6:00 AM | 12:00 PM −1 day |
| 7:00 AM | 1:00 PM −1 day |
| 8:00 AM | 2:00 PM −1 day |
| 9:00 AM | 3:00 PM −1 day |
| 10:00 AM | 4:00 PM −1 day |
| 11:00 AM | 5:00 PM −1 day |
| PHT | HST |
|---|---|
| 12:00 PM | 6:00 PM −1 day |
| 1:00 PM | 7:00 PM −1 day |
| 2:00 PM | 8:00 PM −1 day |
| 3:00 PM | 9:00 PM −1 day |
| 4:00 PM | 10:00 PM −1 day |
| 5:00 PM | 11:00 PM −1 day |
| 6:00 PM | 12:00 AM |
| 7:00 PM | 1:00 AM |
| 8:00 PM | 2:00 AM |
| 9:00 PM | 3:00 AM |
| 10:00 PM | 4:00 AM |
| 11:00 PM | 5:00 AM |
Shared working hours
Taking a working day as 09:00–17:00 in each zone, Philippine Time and Hawaii Standard Time overlap for 2 hours.
9:00 AM–11:00 AM in PHT is 3:00 PM–5:00 PM in HST the previous day.
When the difference changes
It doesn't. Hawaii Standard Time is 18 hours behind Philippine Time on every date of the year. Philippine Time runs at UTC+08:00; Hawaii Standard Time runs at UTC-10:00.
Other conversions
About Philippine Time
The Philippines is a fixed UTC+8. It is a heavily quoted zone in outsourcing schedules, which is why the pairs from it to North America are among the most searched on this site.
Cities on this clock: Beijing, Shanghai, Guangzhou, Shenzhen, Chongqing, Taipei, Hong Kong, Singapore.
Watch out: Philippine Standard Time is often written PST locally — the same letters as US Pacific Standard Time, which is sixteen hours behind it.
About Hawaii Standard Time
Hawaii sits at UTC−10 and does not move its clocks at all — it opted out of US daylight saving in 1967. So its gap to the mainland widens by an hour for the eight months the mainland is on daylight time, without Hawaii doing anything.
Cities on this clock: Honolulu.
How the difference is worked out
Neither Philippine Time nor Hawaii Standard Time moves its clock relative to the other, so hawaii standard time is 18 hours behind philippine time is a rule rather than a fact about one particular year. The hour-by-hour table above holds on every date.
With both zones on their own standard time — daylight saving not in force anywhere — Hawaii Standard Time is 18 hours behind Philippine Time. That figure never changes; everything else on this page follows from it plus whichever clocks have moved.
Every figure here comes from the IANA time zone database via your browser's own Intl engine, using the zone ids Asia/Manila and Pacific/Honolulu. Nothing is looked up on a server and nothing about your visit is recorded.
Is HST ahead of or behind PHT?
Hawaii Standard Time is 18 hours behind Philippine Time, all year round. Philippine Time runs at UTC+08:00; Hawaii Standard Time runs at UTC-10:00. Because neither zone changes its clock, the gap never moves.
What time is 9 AM PHT in HST?
9:00 AM PHT is 3:00 PM HST the previous day.
When can Philippine Time and Hawaii Standard Time meet?
Taking a working day as 09:00–17:00 in each zone, the two overlap for 2 hours: 9:00 AM–11:00 AM in Philippine Time, which is 3:00 PM–5:00 PM in Hawaii Standard Time the previous day.
What does PHT stand for?
PHT is Philippine Time, also written PST (Philippines), PhST, Manila time. Philippine Standard Time is often written PST locally — the same letters as US Pacific Standard Time, which is sixteen hours behind it.