How long does it take to get out of the airport? Let's say 1 hour.
Then how long does it take to get to "Amsterdam Centraal"?
Amsterdam Centraal -> Den Haag Centraal
takes 1hr, last train is 00:34 (http://www.ns.nl/)
BTW: Is the OMNI IMAX worth visiting for people who never been to a hemisphere imax before?