HST to HKT Converter & Meeting Planner
Quick answer: 9:00 AM HST = 3:00 AM HKT (fixed -10:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Hawaii-Aleutian Standard Time (HST) and Hong Kong Time (HKT)? You need to account for the standard time difference. Hong Kong Time is normally 18 hours ahead of Hawaii-Aleutian Standard Time. Whether you are coordinating between teams in Honolulu and Hilo and Hong Kong and Kowloon, 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 HST = 6:00 PM HKT. The full 24-hour HST to HKT table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM HST = 9:00 AM HKT (+1 day).
| HST Time | HKT Time |
|---|---|
| 12:00 AM (00:00) | 6:00 PM (18:00) |
| 1:00 AM (01:00) | 7:00 PM (19:00) |
| 2:00 AM (02:00) | 8:00 PM (20:00) |
| 3:00 AM (03:00) | 9:00 PM (21:00) |
| 4:00 AM (04:00) | 10:00 PM (22:00) |
| 5:00 AM (05:00) | 11:00 PM (23:00) |
| 6:00 AM (06:00) | 12:00 AM (00:00)+1 day |
| 7:00 AM (07:00) | 1:00 AM (01:00)+1 day |
| 8:00 AM (08:00) | 2:00 AM (02:00)+1 day |
| 9:00 AM (09:00) | 3:00 AM (03:00)+1 day |
| 10:00 AM (10:00) | 4:00 AM (04:00)+1 day |
| 11:00 AM (11:00) | 5:00 AM (05:00)+1 day |
| 12:00 PM (12:00) | 6:00 AM (06:00)+1 day |
| 1:00 PM (13:00) | 7:00 AM (07:00)+1 day |
| 2:00 PM (14:00) | 8:00 AM (08:00)+1 day |
| 3:00 PM (15:00) | 9:00 AM (09:00)+1 day |
| 4:00 PM (16:00) | 10:00 AM (10:00)+1 day |
| 5:00 PM (17:00) | 11:00 AM (11:00)+1 day |
| 6:00 PM (18:00) | 12:00 PM (12:00)+1 day |
| 7:00 PM (19:00) | 1:00 PM (13:00)+1 day |
| 8:00 PM (20:00) | 2:00 PM (14:00)+1 day |
| 9:00 PM (21:00) | 3:00 PM (15:00)+1 day |
| 10:00 PM (22:00) | 4:00 PM (16:00)+1 day |
| 11:00 PM (23:00) | 5:00 PM (17:00)+1 day |
Best time to call Hong Kong from Honolulu
For most work calls, compare the normal business day in Honolulu (HST) with the business day in Hong Kong (HKT). HST commonly covers Pacific Ocean, North America, while HKT is mainly associated with East Asia.
⚠️ 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 3:00 PM - 5:00 PM HST, which corresponds to 9:00 AM - 11:00 AM HKT. This window sits inside the typical HST workday (9:00 AM - 5:00 PM) and the HKT workday (9:00 AM - 6:00 PM).
- DST Safety: HST or HKT may shift during Daylight Saving Time. Always confirm the converted time for your specific date.
- Hong Kong Stock Exchange (HKEX): 09:30-16:00 local time in Hong Kong.
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Frequently Asked Questions
What is the time difference between HST and HKT?
During standard time, Hong Kong Time is 18 hours ahead of Hawaii-Aleutian Standard Time.
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.
Does Hong Kong observe Daylight Saving Time?
Hong Kong does not observe Daylight Saving Time and has not done so since 1979, remaining permanently fixed at UTC+8:00 throughout the year. This means the offset between Hong Kong and any DST-observing country shifts by one hour twice annually when those countries change their clocks — but HKT itself never moves.
Are HKT and SGT the same time?
Yes, Hong Kong Time (HKT) and Singapore Time (SGT) share the identical UTC+8:00 offset, and neither territory observes Daylight Saving Time, making the two cities permanently synchronized on the same clock year-round. The same alignment holds with mainland China (CST), Taiwan, Malaysia (MYT), and Western Australia (AWST) — placing Hong Kong and Singapore at the heart of the world's largest permanent UTC+8 economic bloc.