North Carolina is in the same Time Zone as Ontario. According to Google Maps, that s about about 1400 KM by car (13-1/2 Hours by car via I-95) and 1100KM by air. We use the 12 hour clock here instead of the 24 hour clock.
Thats what i assumed, and there still the same time zone as you, no difference, eastern time. Its a little over 800 miles, otherwise know as 1300 kilometers, or about 13 hours drive with the time waiting at the us border and in good weather. (if your flying its just about 3 hours flight).