HST to BJT Converter & Meeting Planner
Quick answer: 9:00 AM HST = 3:00 AM BJT (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 Beijing Time (BJT)? You need to account for the standard time difference. Beijing Time is normally 18 hours ahead of Hawaii-Aleutian Standard Time. Whether you are coordinating between teams in Honolulu and Hilo and Beijing and Shanghai, 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 BJT. The full 24-hour HST to BJT table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM HST = 9:00 AM BJT (+1 day).
| HST Time | BJT 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 Beijing from Honolulu
For most work calls, compare the normal business day in Honolulu (HST) with the business day in Beijing (BJT). HST commonly covers Pacific Ocean, North America, while BJT 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 BJT. This window sits inside the typical HST workday (9:00 AM - 5:00 PM) and the BJT workday (9:00 AM - 6:00 PM).
- DST Safety: HST or BJT may shift during Daylight Saving Time. Always confirm the converted time for your specific date.
- Shanghai Stock Exchange (SSE): 09:30-15:00 local time in Shanghai.
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Frequently Asked Questions
What is the time difference between HST and BJT?
During standard time, Beijing 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 China observe Daylight Saving Time?
Mainland China abolished Daylight Saving Time in 1991 and has remained permanently fixed at UTC+8:00 ever since, with no seasonal clock adjustment at any point in the year. This means the offset between Beijing or Shanghai and any DST-observing country shifts by one hour twice annually when those countries change their clocks — but BJT itself never moves.
How many time zones are there in China?
Despite spanning a geographical width that would naturally encompass five separate time zones — from the eastern coast at roughly UTC+8 to the western reaches of Xinjiang near UTC+6 or even UTC+5 — China officially mandates a single unified time zone, Beijing Time (BJT) at UTC+8:00, across the entire country. This policy has been in place since 1949 and applies to all 34 provincial-level administrative regions without exception.