From
HST
Time Converter
HST to AST Time Converter
Convert Hawaii Time to Atlantic Time with a live clock and clean permalinks.
To
AST / ADT
When it is 7:30 AM in Hawaii Time, it is 2:30 PM in Atlantic Time.
HST to AST at a glance
Atlantic Time is 7 hours ahead of Hawaii Time. If someone gives you a time in Hawaii Time, move the clock by 7 hours to read it in Atlantic Time. A 9:00 AM start in Honolulu becomes 4:00 PM in Halifax.
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.
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.
Quick answers
What is the time difference between HST and AST?
Atlantic Time is 7 hours ahead of Hawaii Time.
What happens to a 3:00 PM meeting in HST?
It lands at 10:00 PM in AST.
Does daylight saving time matter for HST to AST?
Hawaii Time and Atlantic Time are shown using the offsets that are active right now, so the result already reflects any daylight saving change in effect today.