What is CST (China) in HST?
Hawaii Standard Time is 18 hours behind
China Standard Time is on UTC+8:00 and Hawaii Standard Time is on UTC−10:00 right now. That gap holds all year, because both zones change their clocks together.
- Time in Beijing
- 10:15 am
- Time in Honolulu
- 4:15 pm
- Difference
- −18 h
- Next clock change
- Neither zone
Convert a time
HST — Hawaii Standard Time
4:00 pm
Tue, the previous day
Daylight saving
China Standard Time
China Standard Time stays on CST all year, so its offset from UTC never moves.
Hawaii Standard Time
Hawaii Standard Time stays on HST all year, so its offset from UTC never moves.
CST (China) to HST conversion table
Every hour of Wednesday, September 23, 2026, converted from China Standard Time to Hawaii Standard Time. 18 of the 24 hours fall on a different calendar day in Honolulu, which is marked.
- 12:00 am CST
- 6:00 am HST−1 day
- 1:00 am CST
- 7:00 am HST−1 day
- 2:00 am CST
- 8:00 am HST−1 day
- 3:00 am CST
- 9:00 am HST−1 day
- 4:00 am CST
- 10:00 am HST−1 day
- 5:00 am CST
- 11:00 am HST−1 day
- 6:00 am CST
- 12:00 pm HST−1 day
- 7:00 am CST
- 1:00 pm HST−1 day
- 8:00 am CST
- 2:00 pm HST−1 day
- 9:00 am CST
- 3:00 pm HST−1 day
- 10:00 am CST
- 4:00 pm HST−1 day
- 11:00 am CST
- 5:00 pm HST−1 day
- 12:00 pm CST
- 6:00 pm HST−1 day
- 1:00 pm CST
- 7:00 pm HST−1 day
- 2:00 pm CST
- 8:00 pm HST−1 day
- 3:00 pm CST
- 9:00 pm HST−1 day
- 4:00 pm CST
- 10:00 pm HST−1 day
- 5:00 pm CST
- 11:00 pm HST−1 day
- 6:00 pm CST
- 12:00 am HST
- 7:00 pm CST
- 1:00 am HST
- 8:00 pm CST
- 2:00 am HST
- 9:00 pm CST
- 3:00 am HST
- 10:00 pm CST
- 4:00 am HST
- 11:00 pm CST
- 5:00 am HST
Scheduling between the two
Working hours overlap from 9:00 am to 12:00 pm CST, which is 3:00 pm to 6:00 pm HST. 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.
China Standard Time (CST) is used in the whole of China, which runs on one offset from Kashgar to Shanghai
Hawaii Standard Time (HST) is used in all of Hawaii, which does not observe daylight saving