From
AST / ADT
Time Converter
AST to PST Time Converter
Convert Atlantic Time to Pacific Time with a live clock and clean permalinks.
To
PST / PDT
When it is 7:30 AM in Atlantic Time, it is 3:30 AM in Pacific Time.
AST to PST at a glance
Pacific Time is 4 hours behind Atlantic Time. If someone gives you a time in Atlantic Time, move the clock by 4 hours to read it in Pacific Time. A 9:00 AM start in Halifax becomes 5:00 AM in Los Angeles.
What Atlantic Time covers
Atlantic Time is used in eastern Canada and parts of the Caribbean. Halifax is a common city reference for it. It matters when scheduling across North America and island markets farther east.
What Pacific Time covers
Pacific Time is the clock used on the west coast of North America. It is the everyday time for places like Los Angeles, Vancouver, and Seattle. It is a common reference point for tech, entertainment, and west coast customer support teams.
Quick answers
What is the time difference between AST and PST?
Pacific Time is 4 hours behind Atlantic Time.
What happens to a 3:00 PM meeting in AST?
It lands at 11:00 AM in PST.
Does daylight saving time matter for AST to PST?
Atlantic Time and Pacific Time are shown using the offsets that are active right now, so the result already reflects any daylight saving change in effect today.