Originally Posted by
bocastephen
You can enter Taiwan (clear immigration/customs) and exit to the arrivals level and then go back upstairs to the departures level, but you may not be able to get back airside until they open the next morning so there could be a wait depending on what time you arrive.
My flight is scheduled to arrive at 9:10 in the evening — so even if the flight arrives late for whatever reason and the immigrations and customs area is crowded, I am hoping that the departures level is still open by the time I get there.