AST to PST Converter

Atlantic Time

10:50:19 AM AST

Friday, November 13, 2026

4h

Pacific Time

6:50:19 AM PST

Friday, November 13, 2026

Pacific Time (PST / PDT) is 4 hours behind Atlantic Time (AST / ADT).

Quick Reference

Atlantic Time
AST (GMT-4)

ADT starts on Mar 14, 2027

Pacific Time
PST (GMT-8)

PDT starts on Mar 14, 2027

Frequently Asked Questions

What is the difference between AST and PST?
PST is 4 hours behind AST.
How do I convert AST to PST?
To convert from AST to PST, subtract 4 hours. Use the interactive converter on this page to convert specific times.
What cities are in AST and PST?
Cities in AST include Halifax, Charlottetown. Cities in PST include Los Angeles, San Francisco, Seattle, San Diego, Las Vegas.