Time in GMT and CKT
The time difference between Greenwich Mean Time (GMT) and Cook Island Time (CKT) is 10 hours. Cook Island Time is 10 hours behind Greenwich Mean Time.
This means 9am GMT is 11pm CKT (previous day) and 5pm GMT is 7am CKT.
Greenwich Mean Time
- The current local time in GMT is 6:43 am (September 2, 2026)
- GMT time zone offset is UTC+00:00
Cook Island Time
- The current local time in CKT is 4:43 pm (September 2, 2026)
- CKT time zone offset is UTC-10:00
How to convert Greenwich Mean Time to Cook Island Time?
Subtract 10 hours from Greenwich Mean Time to get Cook Island Time.
Time in GMT
00:00
Time in CKT
00:00
Use the slider above to convert Greenwich Mean 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
| GMT | CKT |
|---|---|
| 12am | 2pm |
| 1am | 3pm |
| 2am | 4pm |
| 3am | 5pm |
| 4am | 6pm |
| 5am | 7pm |
| 6am | 8pm |
| 7am | 9pm |
| 8am | 10pm |
| 9am | 11pm |
| 10am | 12am |
| 11am | 1am |
| 12pm | 2am |
| 1pm | 3am |
| 2pm | 4am |
| 3pm | 5am |
| 4pm | 6am |
| 5pm | 7am |
| 6pm | 8am |
| 7pm | 9am |
| 8pm | 10am |
| 9pm | 11am |
| 10pm | 12pm |
| 11pm | 1pm |