na...  :

"

All Canadian provinces recognize the German driver's license and this is sufficient for a stay of 3 months, in the province of British Columbia it is even 6 months. If you are staying in Canada for more than 6 months, you will have to exchange your German driver's license for a Canadian one. If the exchange deadline is exceeded, you may need to take a Canadian driving test. etc...

Back in Germany, simply exchange the Canadian driver's license via the German authorities."