Time in COST and CHADT
The time difference between Colombia Summer Time (COST) and Chatham Daylight Time (CHADT) is 17 hours 45 minutes. Chatham Daylight Time is 17 hours 45 minutes ahead of Colombia Summer Time.
This means 9am COST is 2:45am CHADT (next day) and 5pm COST is 10:45am CHADT (next day).
Colombia Summer Time
- The current local time in COST is 5:35 pm (July 18, 2026)
- COST time zone offset is UTC-04:00
Chatham Daylight Time
- The current local time in CHADT is 3:20 am (July 19, 2026)
- CHADT time zone offset is UTC+13:45
How to convert Colombia Summer Time to Chatham Daylight Time?
Add 17 hours 45 minutes to Colombia Summer Time to get Chatham Daylight Time.
Time in COST
00:00
Time in CHADT
00:00
Use the slider above to convert Colombia Summer Time to Chatham Daylight 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 | CHADT |
|---|---|
| 12am | 5:45pm |
| 1am | 6:45pm |
| 2am | 7:45pm |
| 3am | 8:45pm |
| 4am | 9:45pm |
| 5am | 10:45pm |
| 6am | 11:45pm |
| 7am | 0:45am |
| 8am | 1:45am |
| 9am | 2:45am |
| 10am | 3:45am |
| 11am | 4:45am |
| 12pm | 5:45am |
| 1pm | 6:45am |
| 2pm | 7:45am |
| 3pm | 8:45am |
| 4pm | 9:45am |
| 5pm | 10:45am |
| 6pm | 11:45am |
| 7pm | 12:45pm |
| 8pm | 1:45pm |
| 9pm | 2:45pm |
| 10pm | 3:45pm |
| 11pm | 4:45pm |