HST to JST Converter
Japan Time (JST) is 19 hours ahead of Hawaii Time (HST).
Quick Reference
- Hawaii Time
- HST (GMT-10)
No Daylight Saving Time
- Japan Time
- JST (GMT+9)
No Daylight Saving Time
Cities in HST
Cities in JST
Frequently Asked Questions
- What is the difference between HST and JST?
- JST is 19 hours ahead of HST.
- How do I convert HST to JST?
- To convert from HST to JST, add 19 hours. Use the interactive converter on this page to convert specific times.
- What cities are in HST and JST?
- Cities in HST include Honolulu. Cities in JST include Tokyo, Yokohama, Osaka, Nagoya, Sapporo.