How long it takes from Beijing international air port to train station by air port bus?

Of course, normally if you want to go to Beijing railway station (which I recommend) it would take you about one hour, depending on the traffic jam. To do so you should take the bus number 3 from the airport and stay till the end of the trip. When you go out of the station, you go left, cross the road and continue straight, 200 meters and you are in the railway station. Normally the selling point number 16 is for English speaking, if not, number one will do.