US Greencard holder - traveling to Philippines/Thailand with 2 - 7 Hour layover in Shanghai

I would like to ask if my spouse and I requires a visa.
We are planning a trip to Manila or Bangkok but the airlines will have a 2 to 7 hour layover to Shanghai or Beijing.

If we're going to Manila, the itinerary is San Francisco --> Shanghai (7-hour layover) --> Manila (same route on going back to SF)
If we're going to Bangkok, it is San Francisco --> Beijing (2-hour layover) --> Bangkok (same route on going back to SF)

I hold a Philippine Passport and my spouse holds a Thailand Passport.
We are both USA Permanent Residents (Greencard holder) since 2013.

Our trip will be on December 18/19, 2018. If we need a visa, how soon should we apply?

Thank you so much for your assistance.