It is no fault on your part to enter houses not used for living in, which serve some (other) use for you: And Allah has knowledge of what ye reveal and what ye conceal.
Fajr
6:03
Maghrib
7:09
Isha
8:45
Imams
Br. Abdel Salam,
Br. Abbas Mamadu
Br. Arshad or anyone else if none of the above are present.