AST to CST time converter

CST is 5 hours ahead of AST. When it is 9:00 AM in AST, it is 2:00 PM in CST.

AST UTC+3

Tuesday, October 20, 2026

CST UTC+8

Wednesday, October 21, 2026

AST
Arabia Standard Time
Tue, Oct 20
UTC+3
CST
China Standard Time
Wed, Oct 21
UTC+8+5h
Finding your time zone…
Shared working hours (9:00–18:00)

AST to CST conversion table

Every hour of today in AST and the matching time in CST. Light rows are typical working hours (9:00–18:00).

ASTCST
12:00 AM5:00 AM
1:00 AM6:00 AM
2:00 AM7:00 AM
3:00 AM8:00 AM
4:00 AM9:00 AM
5:00 AM10:00 AM
6:00 AM11:00 AM
7:00 AM12:00 PM
8:00 AM1:00 PM
9:00 AM2:00 PM
10:00 AM3:00 PM
11:00 AM4:00 PM
12:00 PM5:00 PM
1:00 PM6:00 PM
2:00 PM7:00 PM
3:00 PM8:00 PM
4:00 PM9:00 PM
5:00 PM10:00 PM
6:00 PM11:00 PM
7:00 PM12:00 AM+1 day
8:00 PM1:00 AM+1 day
9:00 PM2:00 AM+1 day
10:00 PM3:00 AM+1 day
11:00 PM4:00 AM+1 day

Best time to call or meet

Both sides are at work from 9:00 AM – 1:00 PM in AST (2:00 PM – 6:00 PM in CST).

Daylight saving time and the difference

The difference stays 5 hours all year.

More conversions

CST (China) to AST (Arabia)AST (Arabia) to UTCAST (Arabia) to GMTAST (Arabia) to ESTAST (Arabia) to CSTAST (Arabia) to MSTAST (Arabia) to PSTAST (Arabia) to CETAST (Arabia) to MSKAST (Arabia) to GSTAST (Arabia) to PKTAST (Arabia) to ISTAST (Arabia) to SGT
UTC to CST (China)GMT to CST (China)EST to CST (China)CST to CST (China)MST to CST (China)PST to CST (China)CET to CST (China)MSK to CST (China)GST to CST (China)PKT to CST (China)IST to CST (China)SGT to CST (China)

Questions and answers

What is the time difference between AST and CST?

CST is 5 hours ahead of AST.

What time is it in CST when it is 9 AM in AST?

When it is 9:00 AM in AST, it is 2:00 PM in CST.

When is the best time to call CST from AST?

Both sides are at work from 9:00 AM – 1:00 PM in AST (2:00 PM – 6:00 PM in CST).

Does the time difference between AST and CST change?

No. The difference stays 5 hours all year.