Time in COST and SAKT
The time difference between Colombia Summer Time (COST) and Sakhalin Island Time (SAKT) is 15 hours. Sakhalin Island Time is 15 hours ahead of Colombia Summer Time.
This means 9am COST is 12am SAKT (next day) and 5pm COST is 8am SAKT (next day).
Colombia Summer Time
- The current local time in COST is 5:36 pm (July 18, 2026)
- COST time zone offset is UTC-04:00
Sakhalin Island Time
- The current local time in SAKT is 12:36 am (July 19, 2026)
- SAKT time zone offset is UTC+11:00
How to convert Colombia Summer Time to Sakhalin Island Time?
Add 15 hours to Colombia Summer Time to get Sakhalin Island Time.
Time in COST
00:00
Time in SAKT
00:00
Use the slider above to convert Colombia Summer Time to Sakhalin 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
| COST | SAKT |
|---|---|
| 12am | 3pm |
| 1am | 4pm |
| 2am | 5pm |
| 3am | 6pm |
| 4am | 7pm |
| 5am | 8pm |
| 6am | 9pm |
| 7am | 10pm |
| 8am | 11pm |
| 9am | 12am |
| 10am | 1am |
| 11am | 2am |
| 12pm | 3am |
| 1pm | 4am |
| 2pm | 5am |
| 3pm | 6am |
| 4pm | 7am |
| 5pm | 8am |
| 6pm | 9am |
| 7pm | 10am |
| 8pm | 11am |
| 9pm | 12pm |
| 10pm | 1pm |
| 11pm | 2pm |