CST to AST
Convert China Time — Shanghai to Arabia Time — Riyadh — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Shanghai, it's 4:00 AM in Riyadh. Riyadh is 5 hours behind Shanghai. Use the converter above to turn any CST time into AST, or scan the hour-by-hour table below for the full day.
CST to AST at a glance
Planning a meeting between Shanghai and Riyadh
Planning a call between Shanghai and Riyadh? The best overlap during a standard 9-to-5 workday runs 2:00 PM–5:00 PM CST (9:00 AM–12:00 PM AST). Aim for that window to reach both sides during business hours.
Hour-by-hour: Shanghai to Riyadh
A full day mapped from CST to AST.
Frequently asked
Is Riyadh ahead of or behind Shanghai?
Riyadh is 5 hours behind Shanghai.
What is 12:00 PM CST in AST?
12:00 PM in Shanghai is 7:00 AM in Riyadh.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so CST and AST automatically reflect the correct daylight-saving offset for the current date.