Time in AST and CHADT
The time difference between Atlantic Standard Time (AST) and Chatham Daylight Time (CHADT) is 17 hours 45 minutes. Chatham Daylight Time is 17 hours 45 minutes ahead of Atlantic Standard Time.
This means 9am AST is 2:45am CHADT (next day) and 5pm AST is 10:45am CHADT (next day).
Atlantic Standard Time
- The current local time in AST is 2:49 pm (July 18, 2026)
- AST time zone offset is UTC-04:00
Chatham Daylight Time
- The current local time in CHADT is 12:34 am (July 19, 2026)
- CHADT time zone offset is UTC+13:45
How to convert Atlantic Standard Time to Chatham Daylight Time?
Add 17 hours 45 minutes to Atlantic Standard Time to get Chatham Daylight Time.
Time in AST
00:00
Time in CHADT
00:00
Use the slider above to convert Atlantic Standard 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
| AST | 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 |