Answer to my own question about Skyliner:
The Disney Skyliner operating hours fluctuate with theme park hours, generally beginning 30 minutes to an hour prior to park opening, and ending approximately...
plandisney.disney.go.com
The Disney Skyliner operating hours fluctuate with theme park hours, generally beginning 30 minutes to an hour prior to park opening, and ending approximately 90 minutes after park close. Hours may change week to week or even day by day, and the individual lines may have different operating hours. For example, last week the line to Disney's Pop Century and Art of Animation Resorts was operating from 9:00 am to 10:30 pm, Disney's Hollywood Studios line from 9:00 am to 9:30 pm, and the EPCOT International Gateway line from 10:30 am to 10:30 pm. You can check with the
Front Desk at your hotel for current operating hours during your visit, or check the signs at the Skyliner stations.