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Convert Hawaii Standard Time (HST) to Japan Standard Time (JST, UTC+9) for regional business calls. Free converter with real-time conversion, meeting time planner, and business hours comparison for HST to JST coordination. Includes 24-hour conversion table and live time displays. Perfect for international scheduling and global team collaboration. Works on all devices with accurate, reliable results.
Japan Standard Time is 19 hours ahead of Hawaii Standard Time
Complete hourly conversion for Hawaii Standard Time to Japan Standard Time
| Hawaii Standard Time | Japan Standard Time | 24-Hour HST | 24-Hour JST |
|---|---|---|---|
| 12:00 AM | 7:00 PM | 00:00 | 19:00 |
| 1:00 AM | 8:00 PM | 01:00 | 20:00 |
| 2:00 AM | 9:00 PM | 02:00 | 21:00 |
| 3:00 AM | 10:00 PM | 03:00 | 22:00 |
| 4:00 AM | 11:00 PM | 04:00 | 23:00 |
| 5:00 AM | 12:00 AM (next day) | 05:00 | 00:00 |
| 6:00 AM | 1:00 AM (next day) | 06:00 | 01:00 |
| 7:00 AM | 2:00 AM (next day) | 07:00 | 02:00 |
| 8:00 AM | 3:00 AM (next day) | 08:00 | 03:00 |
| 9:00 AM | 4:00 AM (next day) | 09:00 | 04:00 |
| 10:00 AM | 5:00 AM (next day) | 10:00 | 05:00 |
| 11:00 AM | 6:00 AM (next day) | 11:00 | 06:00 |
| 12:00 PM | 7:00 AM (next day) | 12:00 | 07:00 |
| 1:00 PM | 8:00 AM (next day) | 13:00 | 08:00 |
| 2:00 PM | 9:00 AM (next day) | 14:00 | 09:00 |
| 3:00 PM | 10:00 AM (next day) | 15:00 | 10:00 |
| 4:00 PM | 11:00 AM (next day) | 16:00 | 11:00 |
| 5:00 PM | 12:00 PM (next day) | 17:00 | 12:00 |
| 6:00 PM | 1:00 PM (next day) | 18:00 | 13:00 |
| 7:00 PM | 2:00 PM (next day) | 19:00 | 14:00 |
| 8:00 PM | 3:00 PM (next day) | 20:00 | 15:00 |
| 9:00 PM | 4:00 PM (next day) | 21:00 | 16:00 |
| 10:00 PM | 5:00 PM (next day) | 22:00 | 17:00 |
| 11:00 PM | 6:00 PM (next day) | 23:00 | 18:00 |
Optimal hours for calls between HST and JST
Based on standard business hours (9:00 AM - 6:00 PM) in each time zone
Technical information for both time zones
Source timezone
Target timezone
