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What is ACST in CST (China)?

China Standard Time is 2 hours 30 minutes behind

Australian Central Time is on UTC+10:30 and China Standard Time is on UTC+8:00 right now. Australian Central Time is on daylight saving, so its clocks read ACDT. The gap changes during the year — see below.

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CST — China Standard Time

5:30 pm

CST, Fri

Time in Adelaide
8:48:45 PM
Time in Beijing
6:18:45 PM
Difference
−2:30 h
Next clock change
April 4, 2027

When the difference changes

Australian Central Time and China Standard Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:

  1. Now – April 4, 2027China Standard Time is 2 hours 30 minutes behind
  2. April 4, 2027 – October 3, 2027China Standard Time is 1 hour 30 minutes behind
  3. October 3, 2027 – onwardsChina Standard Time is 2 hours 30 minutes behind

Periods shorter than a day are not listed. Each zone changes at its own local time, so on a date when both move there are a few hours when the gap is briefly something else.

Daylight saving

Australian Central Time

Sunday, April 4, 2027

Clocks go back one hour — 3:00 am becomes 2:00 am local time, and the zone is on ACST after that.

China Standard Time

No clock changes

China Standard Time stays on CST all year, so its offset from UTC never moves.

ACST to CST (China) conversion table

Every hour of Friday, November 13, 2026, converted from Australian Central Time to China Standard Time. 3 of the 24 hours fall on a different calendar day in Beijing, which is marked.

12:00 am ACDT
9:30 pm CST−1 day
1:00 am ACDT
10:30 pm CST−1 day
2:00 am ACDT
11:30 pm CST−1 day
3:00 am ACDT
12:30 am CST
4:00 am ACDT
1:30 am CST
5:00 am ACDT
2:30 am CST
6:00 am ACDT
3:30 am CST
7:00 am ACDT
4:30 am CST
8:00 am ACDT
5:30 am CST
9:00 am ACDT
6:30 am CST
10:00 am ACDT
7:30 am CST
11:00 am ACDT
8:30 am CST
12:00 pm ACDT
9:30 am CST
1:00 pm ACDT
10:30 am CST
2:00 pm ACDT
11:30 am CST
3:00 pm ACDT
12:30 pm CST
4:00 pm ACDT
1:30 pm CST
5:00 pm ACDT
2:30 pm CST
6:00 pm ACDT
3:30 pm CST
7:00 pm ACDT
4:30 pm CST
8:00 pm ACDT
5:30 pm CST
9:00 pm ACDT
6:30 pm CST
10:00 pm ACDT
7:30 pm CST
11:00 pm ACDT
8:30 pm CST

Scheduling between the two

Working hours overlap from 12:00 pm to 6:00 pm ACDT, which is 9:30 am to 3:30 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.

Australian Central Time (ACDT) is used in South Australia and the Northern Territory, on a half-hour offset from the east coast

China Standard Time (CST) is used in the whole of China, which runs on one offset from Kashgar to Shanghai

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