4 hours
Around an hour and a half by car.
The driving distance from Cobourg, Ontario, Canada to London, Ontario, Canada is 184 miles. The driving time is 2 hours 55 minutes.
There are about 120 miles between Toronto Ontario and London Ontario.
It is 595.3 miles from London, Ontario, Canada to Boston, MA. The drive takes from 9 hours to 9 hours 20 minutes, depending on traffic.
map James gray drive willowdale Ontario Canada
about an hour
2 hours and 21 minutes
Google Maps estimates the driving time as 492 miles.
19 hours plus whatever time it takes you to get across the border.
The fireworks are in London, Ontario, at the corner of Boler and Optomist Park Drive. Byron, is a suburb of London.
It will take approximately 13 hours 3 minutes (667.83 miles) to drive from London Ontario to Marathon Ontario, provided posted speed limits are met.
2 and 1/2 hours plus whatever time it takes you to get through the border.