Time in SLST and CKT
The time difference between Sri Lanka Standard Time (SLST) and Cook Island Time (CKT) is 15 hours 30 minutes. Cook Island Time is 15 hours 30 minutes behind Sri Lanka Standard Time.
This means 9am SLST is 5:30pm CKT (previous day) and 5pm SLST is 1:30am CKT.
Sri Lanka Standard Time
- The current local time in SLST is 1:51 pm (September 2, 2026)
- SLST time zone offset is UTC+05:30
Cook Island Time
- The current local time in CKT is 6:21 pm (September 2, 2026)
- CKT time zone offset is UTC-10:00
How to convert Sri Lanka Standard Time to Cook Island Time?
Subtract 15 hours 30 minutes from Sri Lanka Standard Time to get Cook Island Time.
Time in SLST
00:00
Time in CKT
00:00
Use the slider above to convert Sri Lanka 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
| SLST | CKT |
|---|---|
| 12am | 8:30am |
| 1am | 9:30am |
| 2am | 10:30am |
| 3am | 11:30am |
| 4am | 12:30pm |
| 5am | 1:30pm |
| 6am | 2:30pm |
| 7am | 3:30pm |
| 8am | 4:30pm |
| 9am | 5:30pm |
| 10am | 6:30pm |
| 11am | 7:30pm |
| 12pm | 8:30pm |
| 1pm | 9:30pm |
| 2pm | 10:30pm |
| 3pm | 11:30pm |
| 4pm | 0:30am |
| 5pm | 1:30am |
| 6pm | 2:30am |
| 7pm | 3:30am |
| 8pm | 4:30am |
| 9pm | 5:30am |
| 10pm | 6:30am |
| 11pm | 7:30am |