What is the time difference between PST and AST?

AST is 4h 0m ahead of PST. PST is UTC-8 and AST is UTC-4.

PST to AST Converter

AST is 4h 0m ahead of PST. When it's 12:00 PM PST, it's 4:00 PM AST.

From

PST · UTC-8

8:09:46PM

Pacific Standard Time

AST · UTC-4

12:09:46AM

Atlantic Standard Time

9:00 AM PST=1:00 PM AST

12:00 PM PST=4:00 PM AST

5:00 PM PST=9:00 PM AST

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

PST (UTC−8) is the standard-time offset. From March to November the US West Coast observes PDT (UTC−7) instead.

What is the time difference between PST and AST?: AST is 4h 0m ahead of PST. PST is UTC-8 and AST is UTC-4.
What is 12:00 PM PST in AST?: 12:00 PM PST is 4:00 PM AST.
Does PST change for daylight saving time?: PST (UTC−8) is the standard-time offset. From March to November the US West Coast observes PDT (UTC−7) instead.