Time in ADT and CHAST
The time difference between Atlantic Daylight Time (ADT) and Chatham Standard Time (CHAST) is 15 hours 45 minutes. Chatham Standard Time is 15 hours 45 minutes ahead of Atlantic Daylight Time.
This means 9am ADT is 12:45am CHAST (next day) and 5pm ADT is 8:45am CHAST (next day).
Atlantic Daylight Time
- The current local time in ADT is 3:40 pm (July 18, 2026)
- ADT time zone offset is UTC-03:00
Chatham Standard Time
- The current local time in CHAST is 1:25 am (July 19, 2026)
- CHAST time zone offset is UTC+12:45
How to convert Atlantic Daylight Time to Chatham Standard Time?
Add 15 hours 45 minutes to Atlantic Daylight Time to get Chatham Standard Time.
Time in ADT
00:00
Time in CHAST
00:00
Use the slider above to convert Atlantic Daylight Time to Chatham 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
| ADT | CHAST |
|---|---|
| 12am | 3:45pm |
| 1am | 4:45pm |
| 2am | 5:45pm |
| 3am | 6:45pm |
| 4am | 7:45pm |
| 5am | 8:45pm |
| 6am | 9:45pm |
| 7am | 10:45pm |
| 8am | 11:45pm |
| 9am | 0:45am |
| 10am | 1:45am |
| 11am | 2:45am |
| 12pm | 3:45am |
| 1pm | 4:45am |
| 2pm | 5:45am |
| 3pm | 6:45am |
| 4pm | 7:45am |
| 5pm | 8:45am |
| 6pm | 9:45am |
| 7pm | 10:45am |
| 8pm | 11:45am |
| 9pm | 12:45pm |
| 10pm | 1:45pm |
| 11pm | 2:45pm |