What is the time difference between AST and CET?

CET is 5h 0m ahead of AST. AST is UTC-4 and CET is UTC+1.

Does AST change for daylight saving time?

AST is a fixed offset of UTC-4 and does not itself change for daylight saving time.

CET is 5h 0m ahead of AST. When it's 12:00 PM AST, it's 5:00 PM CET.

From

AST · UTC-4

12:09:47AM

Atlantic Standard Time

CET · UTC+1

5:09:47AM

Central European Time

9:00 AM AST=2:00 PM CET

12:00 PM AST=5:00 PM CET

5:00 PM AST=10:00 PM CET

Shaded rows are within standard working hours (8am–6pm) on both sides.

CET (UTC+1) is the standard-time offset; most of continental Western Europe uses CEST (UTC+2) in summer.

What is the time difference between AST and CET?: CET is 5h 0m ahead of AST. AST is UTC-4 and CET is UTC+1.
What is 12:00 PM AST in CET?: 12:00 PM AST is 5:00 PM CET.
Does AST change for daylight saving time?: AST is a fixed offset of UTC-4 and does not itself change for daylight saving time.