From
AST / ADT
Time Converter
AST to HST Time Converter
Convert Atlantic Time to Hawaii Time with a live clock and clean permalinks.
To
HST
When it is 7:30 AM in Atlantic Time, it is 12:30 AM in Hawaii Time.
AST to HST at a glance
Hawaii Time is 7 hours behind Atlantic Time. If someone gives you a time in Atlantic Time, move the clock by 7 hours to read it in Hawaii Time. A 9:00 AM start in Halifax becomes 2:00 AM in Honolulu.
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 Hawaii Time covers
Hawaii Time is used in Honolulu and the rest of Hawaii. It does not switch for daylight saving time. It is helpful when your team works with travel, hospitality, or customers in the Pacific.
Quick answers
What is the time difference between AST and HST?
Hawaii Time is 7 hours behind Atlantic Time.
What happens to a 3:00 PM meeting in AST?
It lands at 8:00 AM in HST.
Does daylight saving time matter for AST to HST?
Atlantic Time and Hawaii Time are shown using the offsets that are active right now, so the result already reflects any daylight saving change in effect today.