Eligible for 72 hour stay?

Hi there,

Wanted to inquire if my upcoming trip is exempt from requiring a visa.

I'm coming from Canada to visit Beijing for 3 days.
Will arrive on May 7th at 11.30am
Departing on May 10th at 1pm

I have a 3 hour layover in Shanghai on May 10th on my way to Manila.

Thank you!