Time in BST and COST
The time difference between Bangladesh Standard Time (BST) and Colombia Summer Time (COST) is 10 hours. Colombia Summer Time is 10 hours behind Bangladesh Standard Time.
This means 9am BST is 11pm COST (previous day) and 5pm BST is 7am COST.
Bangladesh Standard Time
- The current local time in BST is 1:08 pm (September 2, 2026)
- BST time zone offset is UTC+06:00
Colombia Summer Time
- The current local time in COST is 11:08 am (September 2, 2026)
- COST time zone offset is UTC-04:00
How to convert Bangladesh Standard Time to Colombia Summer Time?
Subtract 10 hours from Bangladesh Standard Time to get Colombia Summer Time.
Time in BST
00:00
Time in COST
00:00
Use the slider above to convert Bangladesh 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
| BST | COST |
|---|---|
| 12am | 2pm |
| 1am | 3pm |
| 2am | 4pm |
| 3am | 5pm |
| 4am | 6pm |
| 5am | 7pm |
| 6am | 8pm |
| 7am | 9pm |
| 8am | 10pm |
| 9am | 11pm |
| 10am | 12am |
| 11am | 1am |
| 12pm | 2am |
| 1pm | 3am |
| 2pm | 4am |
| 3pm | 5am |
| 4pm | 6am |
| 5pm | 7am |
| 6pm | 8am |
| 7pm | 9am |
| 8pm | 10am |
| 9pm | 11am |
| 10pm | 12pm |
| 11pm | 1pm |