a long wait of 19.5 hours in the airport, am I eligible for the 24 hours free transit rules?

I will arrive at Baiyun Guangzhou from Vancouver, BC (Canada), wait for my next flight connection,
there is a long wait of 19.5 hours, i plan to go out of the airport and sleep in the hotel,
should i apply for the chinese visa? or i'm eligible for the 24 hours free transit rules?

thank you