Time in BIOT and CKT
The time difference between British Indian Ocean Time (BIOT) and Cook Island Time (CKT) is 16 hours. Cook Island Time is 16 hours behind British Indian Ocean Time.
This means 9am BIOT is 5pm CKT (previous day) and 5pm BIOT is 1am CKT.
British Indian Ocean Time
- The current local time in BIOT is 4:32 am (July 19, 2026)
- BIOT time zone offset is UTC+06:00
Cook Island Time
- The current local time in CKT is 8:32 am (July 19, 2026)
- CKT time zone offset is UTC-10:00
How to convert British Indian Ocean Time to Cook Island Time?
Subtract 16 hours from British Indian Ocean Time to get Cook Island Time.
Time in BIOT
00:00
Time in CKT
00:00
Use the slider above to convert British Indian Ocean 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
| BIOT | CKT |
|---|---|
| 12am | 8am |
| 1am | 9am |
| 2am | 10am |
| 3am | 11am |
| 4am | 12pm |
| 5am | 1pm |
| 6am | 2pm |
| 7am | 3pm |
| 8am | 4pm |
| 9am | 5pm |
| 10am | 6pm |
| 11am | 7pm |
| 12pm | 8pm |
| 1pm | 9pm |
| 2pm | 10pm |
| 3pm | 11pm |
| 4pm | 12am |
| 5pm | 1am |
| 6pm | 2am |
| 7pm | 3am |
| 8pm | 4am |
| 9pm | 5am |
| 10pm | 6am |
| 11pm | 7am |