Time in CKT and JST
The time difference between Cook Island Time (CKT) and Japan Standard Time (JST) is 19 hours. Japan Standard Time is 19 hours ahead of Cook Island Time.
This means 9am CKT is 4am JST (next day) and 5pm CKT is 12pm JST (next day).
Cook Island Time
- The current local time in CKT is 6:04 am (July 19, 2026)
- CKT time zone offset is UTC-10:00
Japan Standard Time
- The current local time in JST is 5:04 am (July 19, 2026)
- JST time zone offset is UTC+09:00
How to convert Cook Island Time to Japan Standard Time?
Add 19 hours to Cook Island Time to get Japan Standard Time.
Time in CKT
00:00
Time in JST
00:00
Use the slider above to convert Cook Island Time to Japan Standard 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
| CKT | JST |
|---|---|
| 12am | 7pm |
| 1am | 8pm |
| 2am | 9pm |
| 3am | 10pm |
| 4am | 11pm |
| 5am | 12am |
| 6am | 1am |
| 7am | 2am |
| 8am | 3am |
| 9am | 4am |
| 10am | 5am |
| 11am | 6am |
| 12pm | 7am |
| 1pm | 8am |
| 2pm | 9am |
| 3pm | 10am |
| 4pm | 11am |
| 5pm | 12pm |
| 6pm | 1pm |
| 7pm | 2pm |
| 8pm | 3pm |
| 9pm | 4pm |
| 10pm | 5pm |
| 11pm | 6pm |