Time in COST and ACST
The time difference between Colombia Summer Time (COST) and Australian Central Standard Time (ACST) is 13 hours 30 minutes. Australian Central Standard Time is 13 hours 30 minutes ahead of Colombia Summer Time.
This means 9am COST is 10:30pm ACST and 5pm COST is 6:30am ACST (next day).
Colombia Summer Time
- The current local time in COST is 12:21 pm (September 2, 2026)
- COST time zone offset is UTC-04:00
Australian Central Standard Time
- The current local time in ACST is 5:51 pm (September 2, 2026)
- ACST time zone offset is UTC+09:30
How to convert Colombia Summer Time to Australian Central Standard Time?
Add 13 hours 30 minutes to Colombia Summer Time to get Australian Central Standard Time.
Time in COST
00:00
Time in ACST
00:00
Use the slider above to convert Colombia Summer Time to Australian Central 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 | ACST |
|---|---|
| 12am | 1:30pm |
| 1am | 2:30pm |
| 2am | 3:30pm |
| 3am | 4:30pm |
| 4am | 5:30pm |
| 5am | 6:30pm |
| 6am | 7:30pm |
| 7am | 8:30pm |
| 8am | 9:30pm |
| 9am | 10:30pm |
| 10am | 11:30pm |
| 11am | 0:30am |
| 12pm | 1:30am |
| 1pm | 2:30am |
| 2pm | 3:30am |
| 3pm | 4:30am |
| 4pm | 5:30am |
| 5pm | 6:30am |
| 6pm | 7:30am |
| 7pm | 8:30am |
| 8pm | 9:30am |
| 9pm | 10:30am |
| 10pm | 11:30am |
| 11pm | 12:30pm |