From
AST / ADT
Time Converter
AST to EST Time Converter
Convert Atlantic Time to Eastern Time with a live clock and clean permalinks.
To
EST / EDT
When it is 7:30 AM in Atlantic Time, it is 6:30 AM in Eastern Time.
AST to EST at a glance
Eastern Time is 1 hour behind Atlantic Time. If someone gives you a time in Atlantic Time, move the clock by 1 hour to read it in Eastern Time. A 9:00 AM start in Halifax becomes 8:00 AM in New York.
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 Eastern Time covers
Eastern Time is the main clock for New York, Washington, Toronto, and many large business hubs on the east side of North America. It is widely used for finance, media, and US-facing business operations.
Quick answers
What is the time difference between AST and EST?
Eastern Time is 1 hour behind Atlantic Time.
What happens to a 3:00 PM meeting in AST?
It lands at 2:00 PM in EST.
Does daylight saving time matter for AST to EST?
Atlantic Time and Eastern Time are shown using the offsets that are active right now, so the result already reflects any daylight saving change in effect today.