Time in COST and BTT
The time difference between Colombia Summer Time (COST) and Bhutan Time (BTT) is 10 hours. Bhutan Time is 10 hours ahead of Colombia Summer Time.
This means 9am COST is 7pm BTT and 5pm COST is 3am BTT (next day).
Colombia Summer Time
- The current local time in COST is 5:34 pm (July 18, 2026)
- COST time zone offset is UTC-04:00
Bhutan Time
- The current local time in BTT is 7:34 pm (July 18, 2026)
- BTT time zone offset is UTC+06:00
How to convert Colombia Summer Time to Bhutan Time?
Add 10 hours to Colombia Summer Time to get Bhutan Time.
Time in COST
00:00
Time in BTT
00:00
Use the slider above to convert Colombia Summer Time to Bhutan 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 | BTT |
|---|---|
| 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 | 12am |
| 3pm | 1am |
| 4pm | 2am |
| 5pm | 3am |
| 6pm | 4am |
| 7pm | 5am |
| 8pm | 6am |
| 9pm | 7am |
| 10pm | 8am |
| 11pm | 9am |