This mod adds a new Timetable for route 92, including an overnight service every day of the week (Holidays included).
Extract all these files to the TTData in your Berlin-Spandau_89 map directory.
Make sure to make a backup of your map directory.
Select route 92 and choose the timetable named "Serviço Noturno".
If you have any doubts, contact me at OMSI forum. My username is Thiago.