Time in COST and BST
The time difference between Colombia Summer Time (COST) and Bangladesh Standard Time (BST) is 10 hours. Bangladesh Standard Time is 10 hours ahead of Colombia Summer Time.
This means 9am COST is 7pm BST and 5pm COST is 3am BST (next day).
Colombia Summer Time
- The current local time in COST is 6:29 pm (July 18, 2026)
- COST time zone offset is UTC-04:00
Bangladesh Standard Time
- The current local time in BST is 8:29 pm (July 18, 2026)
- BST time zone offset is UTC+06:00
How to convert Colombia Summer Time to Bangladesh Standard Time?
Add 10 hours to Colombia Summer Time to get Bangladesh Standard Time.
Time in COST
00:00
Time in BST
00:00
Use the slider above to convert Colombia Summer Time to Bangladesh 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 | BST |
|---|---|
| 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 |