Time in IST and CKT
The time difference between Irish Standard Time (IST) and Cook Island Time (CKT) is 11 hours. Cook Island Time is 11 hours behind Irish Standard Time.
This means 9am IST is 10pm CKT (previous day) and 5pm IST is 6am CKT.
Irish Standard Time
- The current local time in IST is 2:38 pm (July 18, 2026)
- IST time zone offset is UTC+01:00
Cook Island Time
- The current local time in CKT is 11:38 pm (July 18, 2026)
- CKT time zone offset is UTC-10:00
How to convert Irish Standard Time to Cook Island Time?
Subtract 11 hours from Irish Standard Time to get Cook Island Time.
Time in IST
00:00
Time in CKT
00:00
Use the slider above to convert Irish Standard Time to Cook Island 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
| IST | CKT |
|---|---|
| 12am | 1pm |
| 1am | 2pm |
| 2am | 3pm |
| 3am | 4pm |
| 4am | 5pm |
| 5am | 6pm |
| 6am | 7pm |
| 7am | 8pm |
| 8am | 9pm |
| 9am | 10pm |
| 10am | 11pm |
| 11am | 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 |