Hello,
I'm a Canadian citizen travelling to Singapore. My flight from Toronto via Air Canada arrives in Pu Dong Airport on June 6 at 3:15 pm and I'll be in transit for 8 hours when I'll be flying Singapore Airlines to Singapore at 12:10 am on June 7.

Do I need to have a transit visa?

I'll be going back to Canada via Pu Dong airport too.

Thank you in advance for any advices.