Time in COST and JST
The time difference between Colombia Summer Time (COST) and Japan Standard Time (JST) is 13 hours. Japan Standard Time is 13 hours ahead of Colombia Summer Time.
This means 9am COST is 10pm JST and 5pm COST is 6am JST (next day).
Colombia Summer Time
- The current local time in COST is 5:35 pm (July 18, 2026)
- COST time zone offset is UTC-04:00
Japan Standard Time
- The current local time in JST is 10:35 pm (July 18, 2026)
- JST time zone offset is UTC+09:00
How to convert Colombia Summer Time to Japan Standard Time?
Add 13 hours to Colombia Summer Time to get Japan Standard Time.
Time in COST
00:00
Time in JST
00:00
Use the slider above to convert Colombia Summer Time to Japan Standard 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 | JST |
|---|---|
| 12am | 1pm |
| 1am | 2pm |
| 2am | 3pm |
| 3am | 4pm |
| 4am | 5pm |
| 5am | 6pm |
| 6am | 7pm |
| 7am | 8pm |
| 8am | 9pm |
| 9am | 10pm |
| 10am | 11pm |
| 11am | 12am |
| 12pm | 1am |
| 1pm | 2am |
| 2pm | 3am |
| 3pm | 4am |
| 4pm | 5am |
| 5pm | 6am |
| 6pm | 7am |
| 7pm | 8am |
| 8pm | 9am |
| 9pm | 10am |
| 10pm | 11am |
| 11pm | 12pm |