Time in COST and HDT
The time difference between Colombia Summer Time (COST) and Hawaii–Aleutian Daylight Time (HDT) is 5 hours. Hawaii–Aleutian Daylight Time is 5 hours behind Colombia Summer Time.
This means 9am COST is 4am HDT and 5pm COST is 12pm HDT.
Colombia Summer Time
- The current local time in COST is 5:37 pm (July 18, 2026)
- COST time zone offset is UTC-04:00
Hawaii–Aleutian Daylight Time
- The current local time in HDT is 10:37 pm (July 18, 2026)
- HDT time zone offset is UTC-09:00
How to convert Colombia Summer Time to Hawaii–Aleutian Daylight Time?
Subtract 5 hours from Colombia Summer Time to get Hawaii–Aleutian Daylight Time.
Time in COST
00:00
Time in HDT
00:00
Use the slider above to convert Colombia Summer Time to Hawaii–Aleutian 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 | HDT |
|---|---|
| 12am | 7pm |
| 1am | 8pm |
| 2am | 9pm |
| 3am | 10pm |
| 4am | 11pm |
| 5am | 12am |
| 6am | 1am |
| 7am | 2am |
| 8am | 3am |
| 9am | 4am |
| 10am | 5am |
| 11am | 6am |
| 12pm | 7am |
| 1pm | 8am |
| 2pm | 9am |
| 3pm | 10am |
| 4pm | 11am |
| 5pm | 12pm |
| 6pm | 1pm |
| 7pm | 2pm |
| 8pm | 3pm |
| 9pm | 4pm |
| 10pm | 5pm |
| 11pm | 6pm |