What is HST in CST (China)?
China Standard Time is 18 hours ahead
Hawaii Standard Time is on UTC−10:00 and China Standard Time is on UTC+8:00 right now. That gap holds all year, because both zones change their clocks together.
- Time in Honolulu
- 4:15 pm
- Time in Beijing
- 10:15 am
- Difference
- +18 h
- Next clock change
- Neither zone
Convert a time
CST — China Standard Time
10:00 am
Wed, the next day
Daylight saving
Hawaii Standard Time
Hawaii Standard Time stays on HST all year, so its offset from UTC never moves.
China Standard Time
China Standard Time stays on CST all year, so its offset from UTC never moves.
HST to CST (China) conversion table
Every hour of Tuesday, September 22, 2026, converted from Hawaii Standard Time to China Standard Time. 18 of the 24 hours fall on a different calendar day in Beijing, which is marked.
- 12:00 am HST
- 6:00 pm CST
- 1:00 am HST
- 7:00 pm CST
- 2:00 am HST
- 8:00 pm CST
- 3:00 am HST
- 9:00 pm CST
- 4:00 am HST
- 10:00 pm CST
- 5:00 am HST
- 11:00 pm CST
- 6:00 am HST
- 12:00 am CST+1 day
- 7:00 am HST
- 1:00 am CST+1 day
- 8:00 am HST
- 2:00 am CST+1 day
- 9:00 am HST
- 3:00 am CST+1 day
- 10:00 am HST
- 4:00 am CST+1 day
- 11:00 am HST
- 5:00 am CST+1 day
- 12:00 pm HST
- 6:00 am CST+1 day
- 1:00 pm HST
- 7:00 am CST+1 day
- 2:00 pm HST
- 8:00 am CST+1 day
- 3:00 pm HST
- 9:00 am CST+1 day
- 4:00 pm HST
- 10:00 am CST+1 day
- 5:00 pm HST
- 11:00 am CST+1 day
- 6:00 pm HST
- 12:00 pm CST+1 day
- 7:00 pm HST
- 1:00 pm CST+1 day
- 8:00 pm HST
- 2:00 pm CST+1 day
- 9:00 pm HST
- 3:00 pm CST+1 day
- 10:00 pm HST
- 4:00 pm CST+1 day
- 11:00 pm HST
- 5:00 pm CST+1 day
Scheduling between the two
Working hours overlap from 3:00 pm to 6:00 pm HST, which is 9:00 am to 12:00 pm CST. Anything inside that window falls in the normal working day at both ends.
A note on CST (China): it can also mean the abbreviation CST is shared with US Central Time and Cuba Standard Time.
Hawaii Standard Time (HST) is used in all of Hawaii, which does not observe daylight saving
China Standard Time (CST) is used in the whole of China, which runs on one offset from Kashgar to Shanghai