Time in JST and MART
The time difference between Japan Standard Time (JST) and Marquesas Islands Time (MART) is 18 hours 30 minutes. Marquesas Islands Time is 18 hours 30 minutes behind Japan Standard Time.
This means 9am JST is 2:30pm MART (previous day) and 5pm JST is 10:30pm MART (previous day).
Japan Standard Time
- The current local time in JST is 4:07 am (July 9, 2026)
- JST time zone offset is UTC+09:00
Marquesas Islands Time
- The current local time in MART is 4:37 am (July 9, 2026)
- MART time zone offset is UTC-09:30
How to convert Japan Standard Time to Marquesas Islands Time?
Subtract 18 hours 30 minutes from Japan Standard Time to get Marquesas Islands Time.
Time in JST
00:00
Time in MART
00:00
Use the slider above to convert Japan Standard Time to Marquesas Islands 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 | MART |
|---|---|
| 12am | 5:30am |
| 1am | 6:30am |
| 2am | 7:30am |
| 3am | 8:30am |
| 4am | 9:30am |
| 5am | 10:30am |
| 6am | 11:30am |
| 7am | 12:30pm |
| 8am | 1:30pm |
| 9am | 2:30pm |
| 10am | 3:30pm |
| 11am | 4:30pm |
| 12pm | 5:30pm |
| 1pm | 6:30pm |
| 2pm | 7:30pm |
| 3pm | 8:30pm |
| 4pm | 9:30pm |
| 5pm | 10:30pm |
| 6pm | 11:30pm |
| 7pm | 0:30am |
| 8pm | 1:30am |
| 9pm | 2:30am |
| 10pm | 3:30am |
| 11pm | 4:30am |