iformat.io
Convert Japan Standard Time (JST) to Coordinated Universal Time (UTC, UTC+0) with our professional time zone converter. Designed for international business meetings between Tokyo to Global, this tool provides real-time conversion, optimal meeting time suggestions, business hours comparison, and 24-hour conversion tables. Features include live clock displays, meeting scheduler, time zone maps, and daylight saving time handling. Perfect for international business coordination, global team management, and cross-border communication. No registration required - works instantly on all devices with offline capability.
Coordinated Universal Time is 9 hours behind Japan Standard Time
Complete hourly conversion for Japan Standard Time to Coordinated Universal Time
| Japan Standard Time | Coordinated Universal Time | 24-Hour JST | 24-Hour UTC |
|---|---|---|---|
| 12:00 AM | 3:00 PM (previous day) | 00:00 | 15:00 |
| 1:00 AM | 4:00 PM (previous day) | 01:00 | 16:00 |
| 2:00 AM | 5:00 PM (previous day) | 02:00 | 17:00 |
| 3:00 AM | 6:00 PM (previous day) | 03:00 | 18:00 |
| 4:00 AM | 7:00 PM (previous day) | 04:00 | 19:00 |
| 5:00 AM | 8:00 PM (previous day) | 05:00 | 20:00 |
| 6:00 AM | 9:00 PM (previous day) | 06:00 | 21:00 |
| 7:00 AM | 10:00 PM (previous day) | 07:00 | 22:00 |
| 8:00 AM | 11:00 PM (previous day) | 08:00 | 23:00 |
| 9:00 AM | 12:00 AM | 09:00 | 00:00 |
| 10:00 AM | 1:00 AM | 10:00 | 01:00 |
| 11:00 AM | 2:00 AM | 11:00 | 02:00 |
| 12:00 PM | 3:00 AM | 12:00 | 03:00 |
| 1:00 PM | 4:00 AM | 13:00 | 04:00 |
| 2:00 PM | 5:00 AM | 14:00 | 05:00 |
| 3:00 PM | 6:00 AM | 15:00 | 06:00 |
| 4:00 PM | 7:00 AM | 16:00 | 07:00 |
| 5:00 PM | 8:00 AM | 17:00 | 08:00 |
| 6:00 PM | 9:00 AM | 18:00 | 09:00 |
| 7:00 PM | 10:00 AM | 19:00 | 10:00 |
| 8:00 PM | 11:00 AM | 20:00 | 11:00 |
| 9:00 PM | 12:00 PM | 21:00 | 12:00 |
| 10:00 PM | 1:00 PM | 22:00 | 13:00 |
| 11:00 PM | 2:00 PM | 23:00 | 14:00 |
Optimal hours for calls between JST and UTC
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
Japan Standard Time (JST) is 9 hours ahead of Coordinated Universal Time (UTC). This means that when it is noon in UTC, it is 9:00 PM in JST.
To convert JST to UTC manually, subtract 9 hours from the JST time. For example, if it is 3:00 PM JST, you would subtract 9 hours to convert it to 6:00 AM UTC.
Yes, several online tools can help you easily convert JST to UTC. Websites like iformat.io provide user-friendly interfaces where you can instantly input your JST time and receive the corresponding UTC.
The best time for a conference call between JST and UTC is typically between 8:00 AM and 10:00 AM UTC, corresponding to 5:00 PM to 7:00 PM JST. This timeframe accommodates regular working hours for both regions.
Japan does not observe daylight saving time, so the conversion from JST to UTC remains consistent throughout the year. You will always subtract 9 hours from JST to get UTC.
Yes, iformat.io offers tools for easy time zone conversions, including options specifically for converting between JST and UTC. These tools streamline the process and help avoid confusion when scheduling across different time zones.
