Time in COST and ART
The time difference between Colombia Summer Time (COST) and Argentina Time (ART) is 1 hour. Argentina Time is 1 hour ahead of Colombia Summer Time.
This means 9am COST is 10am ART and 5pm COST is 6pm ART.
Colombia Summer Time
- The current local time in COST is 5:35 pm (July 18, 2026)
- COST time zone offset is UTC-04:00
Argentina Time
- The current local time in ART is 4:35 pm (July 18, 2026)
- ART time zone offset is UTC-03:00
How to convert Colombia Summer Time to Argentina Time?
Add 1 hour to Colombia Summer Time to get Argentina Time.
Time in COST
00:00
Time in ART
00:00
Use the slider above to convert Colombia Summer Time to Argentina 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 | ART |
|---|---|
| 12am | 1am |
| 1am | 2am |
| 2am | 3am |
| 3am | 4am |
| 4am | 5am |
| 5am | 6am |
| 6am | 7am |
| 7am | 8am |
| 8am | 9am |
| 9am | 10am |
| 10am | 11am |
| 11am | 12pm |
| 12pm | 1pm |
| 1pm | 2pm |
| 2pm | 3pm |
| 3pm | 4pm |
| 4pm | 5pm |
| 5pm | 6pm |
| 6pm | 7pm |
| 7pm | 8pm |
| 8pm | 9pm |
| 9pm | 10pm |
| 10pm | 11pm |
| 11pm | 12am |