When should I start looking for a job abroad? I'll be graduating in a year (July 2018), and I want to try my luck looking for a job abroad. When should I start sending out resumes?

I'm trying to figure out the general timeline... (when should I apply, how long the process usually takes, etc)

I understand that this varies a lot for each country, and I don't have any place set in stone to go. (Thinking aobut Europe, Canada, Australia, NZ... Am from South America)