Time in JST and AMST
The time difference between Japan Standard Time (JST) and Amazon Summer Time (AMST) is 12 hours. Amazon Summer Time is 12 hours behind Japan Standard Time.
This means 9am JST is 9pm AMST (previous day) and 5pm JST is 5am AMST.
Japan Standard Time
- The current local time in JST is 4:07 am (July 9, 2026)
- JST time zone offset is UTC+09:00
Amazon Summer Time
- The current local time in AMST is 10:07 pm (July 8, 2026)
- AMST time zone offset is UTC-03:00
How to convert Japan Standard Time to Amazon Summer Time?
Subtract 12 hours from Japan Standard Time to get Amazon Summer Time.
Time in JST
00:00
Time in AMST
00:00
Use the slider above to convert Japan Standard Time to Amazon Summer 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 | AMST |
|---|---|
| 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 |