You can drive on your Canadian licence for a year. International driving permit unnecessary. Your licence can be exchanged for full UK licence without taking any tests. But unless you have passed your Canadian driving test in a manual and have documentary proof for it, your licence will only cover driving automatics.
I didn't want to open a new thread as my question is similar to marievantassel's.
I have a Japanese Manual licence.
When I arrive in UK I want to convert it to a licence type B, and then take tests for D1.
Do I need to hold the licence type B/C for a certain time in order to get a D1 or as I am not a fresh diver, 25+ years old, I can take the tests for D1 right the way?
PS: The information I have found online wasn't so clear.