Paul was seated at the front desk of the CTU Los Angeles building when Jack arrived shortly after midnight, and greeted him as he walked through the door. Jack greeted him back, and Paul stayed at this post for another two hours, before putting on a jacket and starting to leave at around 2:15am. ("12:00am-1:00am", "2:00am-3:00am")
Background information and notes
It is possible that Paul is portrayed by a different performer in his second appearance; however, his position among the set of entrance guards implies it is the same character.