WorldCityTime

Shanghai to AST Time

Current time difference, live clocks, best time to call and 24-hour conversion chart.

AST is not currently in effect. Halifax, its main city, is on ADT (UTC-3:00) right now. This page converts the fixed AST offset (UTC-4:00).
Live Clocks
Shanghai
12:48 PM
Wednesday Aug, 26, 2026
CST is 8 hours ahead of Universal Time (UTC+8)
Shanghai, Shanghai, China China Standard Time
AST
12:48 AM
Wednesday Aug, 26, 2026
AST is 4 hours behind Universal Time (UTC-4)
Atlantic Standard Time
12 AM6 AM12 PM6 PM11 PM
Shanghai: 9 AM → AST: 2 PM
Good time to call — both cities are in working hours.
Time difference between Shanghai and AST
-12h
Shanghai is 12 hours ahead of AST. Note: AST is not currently in effect - Halifax is on ADT (UTC-3:00) right now.
Subtract 12 hours from Shanghai time to get AST.

Shanghai time (CST) is 8 hours ahead of Universal Time (UTC+8), and AST is 4 hours behind Universal Time (UTC-4).

Shanghai to AST Time Conversion

When it is 12:00 PM in Shanghai, it is 12:00 AM in AST.

There is no overlap during standard 9-to-5 business hours, so a call may need to be early or late in the day for one side.

Shanghai to AST time conversion chart (24 hours)
Shanghai and AST have no overlapping 9-to-5 business hours, so no rows are highlighted.
☼ The sun marks hours when it is daylight in that city.
Shanghai TimeAST Time
12 AM Shanghai Time ↔ 12 PM AST Time
1 AM Shanghai Time ↔ 1 PM AST Time
2 AM Shanghai Time ↔ 2 PM AST Time
3 AM Shanghai Time ↔ 3 PM AST Time
4 AM Shanghai Time ↔ 4 PM AST Time
5 AM Shanghai Time ↔ 5 PM AST Time
☼6 AM Shanghai Time ↔ 6 PM AST Time
☼7 AM Shanghai Time ↔ 7 PM AST Time
☼8 AM Shanghai Time ↔ 8 PM AST Time
☼9 AM Shanghai Time ↔ 9 PM AST Time
☼10 AM Shanghai Time ↔ 10 PM AST Time
☼11 AM Shanghai Time ↔ 11 PM AST Time
Shanghai TimeAST Time
☼12 PM Shanghai Time ↔ 12 AM AST Time
☼1 PM Shanghai Time ↔ 1 AM AST Time
☼2 PM Shanghai Time ↔ 2 AM AST Time
☼3 PM Shanghai Time ↔ 3 AM AST Time
☼4 PM Shanghai Time ↔ 4 AM AST Time
☼5 PM Shanghai Time ↔ 5 AM AST Time
6 PM Shanghai Time ↔ 6 AM AST Time
7 PM Shanghai Time ↔ 7 AM AST Time
8 PM Shanghai Time ↔ 8 AM AST Time
9 PM Shanghai Time ↔ 9 AM AST Time
10 PM Shanghai Time ↔ 10 AM AST Time
11 PM Shanghai Time ↔ 11 AM AST Time
Shanghai to AST - Frequently Asked Questions
Q
What is the time difference between Shanghai and AST?
A
Shanghai is 12 hours ahead of AST. Note: AST is not currently in effect - Halifax is on ADT (UTC-3:00) right now.
Q
Is Shanghai ahead of or behind AST?
A
Shanghai is ahead of AST by 12 hours.
Q
When it is 9:00 AM in Shanghai, what time is it in AST?
A
It is 9:00 PM the previous day in AST.
Quick Facts
Shanghai zoneCST
AST zoneAST
Difference-12h
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Convert Shanghai Time to AST
Hour by hour
12 AM Shanghai to AST12 PM Shanghai to AST1 AM Shanghai to AST1 PM Shanghai to AST2 AM Shanghai to AST2 PM Shanghai to AST3 AM Shanghai to AST3 PM Shanghai to AST4 AM Shanghai to AST4 PM Shanghai to AST5 AM Shanghai to AST5 PM Shanghai to AST6 AM Shanghai to AST6 PM Shanghai to AST7 AM Shanghai to AST7 PM Shanghai to AST8 AM Shanghai to AST8 PM Shanghai to AST9 AM Shanghai to AST9 PM Shanghai to AST10 AM Shanghai to AST10 PM Shanghai to AST11 AM Shanghai to AST11 PM Shanghai to AST
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