How long is a post-graduation work permit valid?
How long the post-graduation work permit is valid for depends on the length of your study program. If your program was:
less than eight months
you aren’t eligible for a PGWP
more than eight months but less than two years
your PGWP may be valid for up to the same length as your study program (for example, if you studied for nine months, a work permit may be issued for up to nine months)
two years or more
a PGWP may be issued for three years
more than one program
a PGWP may be valid for up to three years, for example, if you finished a diploma or degree from an eligible school in Canada, and within the next two years you get a one-year graduate degree or diploma from an eligible school in Canada.