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HST to JST converter
Hawaii Time
—
Japan Standard Time
—
Japan Standard Time is always 19 hours ahead of Hawaii Time.
When does the difference change?
The difference stays the same all year: JST is 19 hours ahead of HST.
Questions
What time is 9 AM HST in JST?
9 AM Hawaii Time is 4 AM the next day Japan Standard Time.
How many hours ahead or behind is JST from HST?
Japan Standard Time is always 19 hours ahead of Hawaii Time.
Does the HST to JST difference change?
No, it stays the same all year.
About these time zones
HST to JST, hour by hour
| Hawaii Time | Japan Standard Time |
|---|---|
| 12 AM | 7 PM |
| 1 AM | 8 PM |
| 2 AM | 9 PM |
| 3 AM | 10 PM |
| 4 AM | 11 PM |
| 5 AM | 12 AM (next day) |
| 6 AM | 1 AM (next day) |
| 7 AM | 2 AM (next day) |
| 8 AM | 3 AM (next day) |
| 9 AM | 4 AM (next day) |
| 10 AM | 5 AM (next day) |
| 11 AM | 6 AM (next day) |
| 12 PM | 7 AM (next day) |
| 1 PM | 8 AM (next day) |
| 2 PM | 9 AM (next day) |
| 3 PM | 10 AM (next day) |
| 4 PM | 11 AM (next day) |
| 5 PM | 12 PM (next day) |
| 6 PM | 1 PM (next day) |
| 7 PM | 2 PM (next day) |
| 8 PM | 3 PM (next day) |
| 9 PM | 4 PM (next day) |
| 10 PM | 5 PM (next day) |
| 11 PM | 6 PM (next day) |
Based on the clocks on Monday, October 12, 2026. Use the converter above for another date.