JST to GMT Converter
JST in GMT Converter
Current Time
Converted Time
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JST to GMT Time Difference Calculator
between JST and GMT: 9 hours behind
How to convert JST to GMT
To convert from JST to GMT, note that the time difference is 9 hours. Steps: 1. Click the JST (left) and select the time you want to convert. 2. The corresponding time in GMT (right) will update automatically. 3. You can also adjust the date and time by clicking the date or time field. When it's 12:00 PM in JST, it's 3:00 AM in GMT. This conversion accounts for daylight saving time (DST) changes, which can affect the time difference throughout the year
What Current Time Now in JST?
The current time in JST is 12:24 AM, December 26, 2025.
What Current Time Now in GMT?
The current time in GMT is 3:24 PM, December 25, 2025.
JST to GMT Conversion Chart
| JST (Source Time) | GMT (Target Time) |
|---|---|
| 12:00 AM | 3:00 PM |
| 1:00 AM | 4:00 PM |
| 2:00 AM | 5:00 PM |
| 3:00 AM | 6:00 PM |
| 4:00 AM | 7:00 PM |
| 5:00 AM | 8:00 PM |
| 6:00 AM | 9:00 PM |
| 7:00 AM | 10:00 PM |
| 8:00 AM | 11:00 PM |
| 9:00 AM | 12:00 AM |
| 10:00 AM | 1:00 AM |
| 11:00 AM | 2:00 AM |
| 12:00 PM | 3:00 AM |
| 1:00 PM | 4:00 AM |
| 2:00 PM | 5:00 AM |
| 3:00 PM | 6:00 AM |
| 4:00 PM | 7:00 AM |
| 5:00 PM | 8:00 AM |
| 6:00 PM | 9:00 AM |
| 7:00 PM | 10:00 AM |
| 8:00 PM | 11:00 AM |
| 9:00 PM | 12:00 PM |
| 10:00 PM | 1:00 PM |
| 11:00 PM | 2:00 PM |
Why Trust Our Time Zone Converter
Our time zone converter uses the official IANA Time Zone Database, which is maintained by a group of volunteers and is the most accurate source for time zone information worldwide. The converter automatically accounts for daylight saving time changes and provides real-time conversion based on current DST status.
Frequently Asked Questions
What is the time difference between JST and GMT?
The time difference between JST (Japan Standard Time) and GMT (Greenwich Mean Time) is 9 hours. JST is behind GMT.
Does JST observe daylight saving time?
JST does not observe daylight saving time.
How do I convert a specific time from JST to GMT?
Use the time converter above. Enter the date and time in JST, and the converter will automatically display the corresponding time in GMT.
Is the time difference constant throughout the year?
The time difference may vary if either JST or GMT observes daylight saving time (DST). During DST periods, the offset changes by one hour. Our converter automatically accounts for these changes.