So on the Taoyuan Metro google maps states it is a 21 minute journey from Taoyuan HSR to Taoyuan Airport Terminal 2 (not counting any transit time, just stating 5 stops 21 minutes). Well, the man at the station said 18 minutes to terminal 1. On the website it says 16 to terminal 2, which is what I got also.
Where does google get its numbers? That is just simply wrong.