First time traveler to Amsterdam and Holland.

We will be spending one night in the Hague next month. My plan is to head straight from AMS (we arrive around 2:00pm) by train. My understanding is we will need to take the airport train to Centrall station (about 3 Euros/ow) then purchase a seperate ticket to the Hague (IIRC 18 Euros/RT)

I need your help deciding how feasible/practical my plans are for this trip. Assuming all goes well with the flight I imagine we will arrive around 5:00pm and then have the entire evening in the Hague.

My concern is we will be arriving on a Friday night and plan to spend all day Saturday and would like to visit the Internaional Criminal Court and Dutch Parliament (Eerste Kamer). We will then spend two days in Amsterdam and return to the US on an 8:00am flight on Monday. I intend to stay in the same hotel in Amsterdam for two nights and take the airport express train Monday morning. Does this seem doable? All advice appreciated.