From
Japan Time
Tokyo
Time Zone Converter
JST to HST Time Zone Converter
Convert JST to HST with a live clock, current time difference, UTC offsets, and work-hour overlap. HST is 19 hours behind JST.
To
Hawaii Time
Honolulu
When it is 7:30 AM in Japan Time, it is 12:30 PM in Hawaii Time.
JST to HST at a glance
Hawaii Time is 19 hours behind Japan Time. If someone gives you a time in Japan Time, move the clock by 19 hours to read it in Hawaii Time. A 9:00 AM start in Tokyo becomes 2:00 PM in Honolulu.
What Japan Time covers
Japan Time is used throughout Japan. Tokyo follows it year-round without daylight saving changes. It is helpful for manufacturing, gaming, and business coordination with Japan-based teams.
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 JST and HST?
Hawaii Time is 19 hours behind Japan Time.
What happens to a 3:00 PM meeting in JST?
It lands at 8:00 PM in HST.
Does daylight saving time matter for JST to HST?
Japan 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.