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Convert Japan Standard Time (JST) to Atlantic Standard Time (AST, UTC-4) for regional business calls. Free converter with real-time conversion, meeting time planner, and business hours comparison for JST to AST 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.
Atlantic Standard Time is 13 hours behind Japan Standard Time
Complete hourly conversion for Japan Standard Time to Atlantic Standard Time
| Japan Standard Time | Atlantic Standard Time | 24-Hour JST | 24-Hour AST |
|---|---|---|---|
| 12:00 AM | 11:00 AM (previous day) | 00:00 | 11:00 |
| 1:00 AM | 12:00 PM (previous day) | 01:00 | 12:00 |
| 2:00 AM | 1:00 PM (previous day) | 02:00 | 13:00 |
| 3:00 AM | 2:00 PM (previous day) | 03:00 | 14:00 |
| 4:00 AM | 3:00 PM (previous day) | 04:00 | 15:00 |
| 5:00 AM | 4:00 PM (previous day) | 05:00 | 16:00 |
| 6:00 AM | 5:00 PM (previous day) | 06:00 | 17:00 |
| 7:00 AM | 6:00 PM (previous day) | 07:00 | 18:00 |
| 8:00 AM | 7:00 PM (previous day) | 08:00 | 19:00 |
| 9:00 AM | 8:00 PM (previous day) | 09:00 | 20:00 |
| 10:00 AM | 9:00 PM (previous day) | 10:00 | 21:00 |
| 11:00 AM | 10:00 PM (previous day) | 11:00 | 22:00 |
| 12:00 PM | 11:00 PM (previous day) | 12:00 | 23:00 |
| 1:00 PM | 12:00 AM | 13:00 | 00:00 |
| 2:00 PM | 1:00 AM | 14:00 | 01:00 |
| 3:00 PM | 2:00 AM | 15:00 | 02:00 |
| 4:00 PM | 3:00 AM | 16:00 | 03:00 |
| 5:00 PM | 4:00 AM | 17:00 | 04:00 |
| 6:00 PM | 5:00 AM | 18:00 | 05:00 |
| 7:00 PM | 6:00 AM | 19:00 | 06:00 |
| 8:00 PM | 7:00 AM | 20:00 | 07:00 |
| 9:00 PM | 8:00 AM | 21:00 | 08:00 |
| 10:00 PM | 9:00 AM | 22:00 | 09:00 |
| 11:00 PM | 10:00 AM | 23:00 | 10:00 |
Optimal hours for calls between JST and AST
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
Popular business hours conversion from Japan Standard Time to Atlantic Standard Time