Code for: https://www.youtube.com/watch?v=3Q_oYDQ2whs
At what time can those 2 people have a meeting.
p1 = [["9:00", "10:30"], ["12:00", "13:00"], ["16:00", "18:00"]] p1off = [["0:00", "9:00"], ["20:00", "24:00"]]
p2 = [["10:00", "11:30"], ["12:30", "14:30"], ["14:30", "15:00"], ["16:00", "17:00"]] p2off = [["0:00", "10:00"], ["18:30", "24:00"]]