Time in HKT and AST
The time difference between Hong Kong Time (HKT) and Atlantic Standard Time (AST) is 12 hours. Atlantic Standard Time is 12 hours behind Hong Kong Time.
This means 9am HKT is 9pm AST (previous day) and 5pm HKT is 5am AST.
Hong Kong Time
- The current local time in HKT is 8:29 pm (July 18, 2026)
- HKT time zone offset is UTC+08:00
Atlantic Standard Time
- The current local time in AST is 4:29 pm (July 18, 2026)
- AST time zone offset is UTC-04:00
How to convert Hong Kong Time to Atlantic Standard Time?
Subtract 12 hours from Hong Kong Time to get Atlantic Standard Time.
Time in HKT
00:00
Time in AST
00:00
Use the slider above to convert Hong Kong Time to Atlantic 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
| HKT | AST |
|---|---|
| 12am | 12pm |
| 1am | 1pm |
| 2am | 2pm |
| 3am | 3pm |
| 4am | 4pm |
| 5am | 5pm |
| 6am | 6pm |
| 7am | 7pm |
| 8am | 8pm |
| 9am | 9pm |
| 10am | 10pm |
| 11am | 11pm |
| 12pm | 12am |
| 1pm | 1am |
| 2pm | 2am |
| 3pm | 3am |
| 4pm | 4am |
| 5pm | 5am |
| 6pm | 6am |
| 7pm | 7am |
| 8pm | 8am |
| 9pm | 9am |
| 10pm | 10am |
| 11pm | 11am |