Originally Posted by
tiblot
Somewhat unrelated but I'll be trying this via AA in a couple days:
IAD -> DFW -> PVG -> TPE -> SFO -> IAD
Land in PVG April 1 @ 3PM. Counter starts April 2 @ Midnight.
Leave PVG April 4 @ 8PM.
Results in >72 hours of actual time on the ground
You are spending less than 72 hours from midnight on April 2.