Time in SLST and COST
The time difference between Sri Lanka Standard Time (SLST) and Colombia Summer Time (COST) is 9 hours 30 minutes. Colombia Summer Time is 9 hours 30 minutes behind Sri Lanka Standard Time.
This means 9am SLST is 11:30pm COST (previous day) and 5pm SLST is 7:30am COST.
Sri Lanka Standard Time
- The current local time in SLST is 6:05 pm (July 18, 2026)
- SLST time zone offset is UTC+05:30
Colombia Summer Time
- The current local time in COST is 4:35 pm (July 18, 2026)
- COST time zone offset is UTC-04:00
How to convert Sri Lanka Standard Time to Colombia Summer Time?
Subtract 9 hours 30 minutes from Sri Lanka Standard Time to get Colombia Summer Time.
Time in SLST
00:00
Time in COST
00:00
Use the slider above to convert Sri Lanka Standard Time to Colombia Summer 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 | COST |
|---|---|
| 12am | 2:30pm |
| 1am | 3:30pm |
| 2am | 4:30pm |
| 3am | 5:30pm |
| 4am | 6:30pm |
| 5am | 7:30pm |
| 6am | 8:30pm |
| 7am | 9:30pm |
| 8am | 10:30pm |
| 9am | 11:30pm |
| 10am | 0:30am |
| 11am | 1:30am |
| 12pm | 2:30am |
| 1pm | 3:30am |
| 2pm | 4:30am |
| 3pm | 5:30am |
| 4pm | 6:30am |
| 5pm | 7:30am |
| 6pm | 8:30am |
| 7pm | 9:30am |
| 8pm | 10:30am |
| 9pm | 11:30am |
| 10pm | 12:30pm |
| 11pm | 1:30pm |