PHT to HST Converter & Meeting Planner
Quick answer: 9:00 AM PHT = 3:00 PM HST (fixed +08:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Philippine Time (PHT) and Hawaii-Aleutian Standard Time (HST)? You need to account for the standard time difference. Hawaii-Aleutian Standard Time is normally 18 hours behind Philippine Time. Whether you are coordinating between teams in Manila and Quezon City and Honolulu and Hilo, our live tool has you covered. Use our interactive overlap studio below to find the perfect waking hours for both regions, taking into account any seasonal Daylight Saving Time (DST) changes.
24-Hour Conversion Table
Quick reference: 12:00 AM PHT = 6:00 AM HST. The full 24-hour PHT to HST table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM PHT = 9:00 PM HST (-1 day).
| PHT Time | HST Time |
|---|---|
| 12:00 AM (00:00) | 6:00 AM (06:00)-1 day |
| 1:00 AM (01:00) | 7:00 AM (07:00)-1 day |
| 2:00 AM (02:00) | 8:00 AM (08:00)-1 day |
| 3:00 AM (03:00) | 9:00 AM (09:00)-1 day |
| 4:00 AM (04:00) | 10:00 AM (10:00)-1 day |
| 5:00 AM (05:00) | 11:00 AM (11:00)-1 day |
| 6:00 AM (06:00) | 12:00 PM (12:00)-1 day |
| 7:00 AM (07:00) | 1:00 PM (13:00)-1 day |
| 8:00 AM (08:00) | 2:00 PM (14:00)-1 day |
| 9:00 AM (09:00) | 3:00 PM (15:00)-1 day |
| 10:00 AM (10:00) | 4:00 PM (16:00)-1 day |
| 11:00 AM (11:00) | 5:00 PM (17:00)-1 day |
| 12:00 PM (12:00) | 6:00 PM (18:00)-1 day |
| 1:00 PM (13:00) | 7:00 PM (19:00)-1 day |
| 2:00 PM (14:00) | 8:00 PM (20:00)-1 day |
| 3:00 PM (15:00) | 9:00 PM (21:00)-1 day |
| 4:00 PM (16:00) | 10:00 PM (22:00)-1 day |
| 5:00 PM (17:00) | 11:00 PM (23:00)-1 day |
| 6:00 PM (18:00) | 12:00 AM (00:00) |
| 7:00 PM (19:00) | 1:00 AM (01:00) |
| 8:00 PM (20:00) | 2:00 AM (02:00) |
| 9:00 PM (21:00) | 3:00 AM (03:00) |
| 10:00 PM (22:00) | 4:00 AM (04:00) |
| 11:00 PM (23:00) | 5:00 AM (05:00) |
Best time to call Honolulu from Manila
For most work calls, compare the normal business day in Manila (PHT) with the business day in Honolulu (HST). PHT commonly covers Southeast Asia, while HST is mainly associated with Pacific Ocean, North America.
⚠️ Note: 2026-07-05 is not a normal workday in one or both regions based on their configured calendar. The overlap below should be treated as a reference, not a guaranteed office-hours window.
✅ The most practical overlap on 2026-07-05 is usually 9:00 AM - 11:00 AM PHT, which corresponds to 3:00 PM - 5:00 PM HST. This window sits inside the typical PHT workday (9:00 AM - 6:00 PM) and the HST workday (9:00 AM - 5:00 PM).
- DST Safety: PHT or HST may shift during Daylight Saving Time. Always confirm the converted time for your specific date.
- Philippine Stock Exchange (PSE): 09:30-15:00 local time in Makati.
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Frequently Asked Questions
What is the time difference between PHT and HST?
During standard time, Hawaii-Aleutian Standard Time is 18 hours behind Philippine Time.
Does the Philippines observe Daylight Saving Time?
The Philippines does not observe Daylight Saving Time and has not done so since 1990, when the practice was last used as an energy conservation measure. PHT remains permanently fixed at UTC+8:00 every day of the year, meaning the offset between Manila and any DST-observing partner country shifts by one hour twice annually when those countries change their clocks — but PHT itself never moves.
Are PHT and SGT the same time?
Yes, Philippine Time (PHT) and Singapore Time (SGT) share the identical UTC+8:00 offset, and neither country observes Daylight Saving Time, making Manila and Singapore permanently synchronized on the same clock year-round. The same alignment holds with Malaysia (MYT), Greater China (CST), Hong Kong (HKT), and Western Australia (AWST) — all permanent UTC+8 zones.
Does Hawaii observe Daylight Saving Time?
Hawaii does not observe Daylight Saving Time and has not done so since 1947, remaining fixed at UTC-10:00 year-round. At roughly 20° North latitude, Hawaii's daylight hours vary by only about 1.5 hours between the summer and winter solstices — far too little to justify the disruption of a seasonal clock change.
Why is it called Hawaii-Aleutian time?
The name combines two geographically distant US territories that share the same UTC-10:00 standard offset: the Hawaiian Islands in the central Pacific and the westernmost Aleutian Islands of Alaska, which extend past the 180° meridian into the Eastern Hemisphere. Despite sharing a base offset, they behave differently — Hawaii observes no DST, while the Aleutian communities such as Adak do advance to HDT (UTC-9) each summer.