Time in JST and ADT
The time difference between Japan Standard Time (JST) and Atlantic Daylight Time (ADT) is 12 hours. Atlantic Daylight Time is 12 hours behind Japan Standard Time.
This means 9am JST is 9pm ADT (previous day) and 5pm JST is 5am ADT.
Japan Standard Time
- The current local time in JST is 4:08 am (July 9, 2026)
- JST time zone offset is UTC+09:00
Atlantic Daylight Time
- The current local time in ADT is 10:08 pm (July 8, 2026)
- ADT time zone offset is UTC-03:00
How to convert Japan Standard Time to Atlantic Daylight Time?
Subtract 12 hours from Japan Standard Time to get Atlantic Daylight Time.
Time in JST
00:00
Time in ADT
00:00
Use the slider above to convert Japan Standard Time to Atlantic Daylight Time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| JST | ADT |
|---|---|
| 12am | 12pm |
| 1am | 1pm |
| 2am | 2pm |
| 3am | 3pm |
| 4am | 4pm |
| 5am | 5pm |
| 6am | 6pm |
| 7am | 7pm |
| 8am | 8pm |
| 9am | 9pm |
| 10am | 10pm |
| 11am | 11pm |
| 12pm | 12am |
| 1pm | 1am |
| 2pm | 2am |
| 3pm | 3am |
| 4pm | 4am |
| 5pm | 5am |
| 6pm | 6am |
| 7pm | 7am |
| 8pm | 8am |
| 9pm | 9am |
| 10pm | 10am |
| 11pm | 11am |