TimezoneHop

CDT to AST Converter

AST is 1 hour ahead of CDT. When it is 9:00 AM in CDT, it is 10:00 AM in AST.

Most places that use CDT are currently on CST (UTC−6) until Sun, Mar 14, 2027. Chicago is currently UTC−6.

Convert CDT to AST

Live
  1. CDTCDT (UTC−5)
    1:27 AMThu, Nov 5
  2. ASTAST (UTC−4), 1 hour ahead
    2:27 AMThu, Nov 5
Thursday, November 5, 2026

CDT to AST time table

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

Best time for a meeting

The best time to meet is 9:00 AM–4:00 PM in CDT (10:00 AM–5:00 PM in AST), when both are within 9 AM–5 PM working hours.

Daylight saving changes

CDT and AST are fixed UTC offsets, so the difference between them never changes.

More about these times

Convert CDT to other places

Convert other places to AST