84. Question: How can we know the time of mid-night? Do 00.00 hours the point of mid-night as it is commonly held by some people?
Answer: Midnight is halfway between sunset and true dawn. So if the sun sets at 7 p.m. and the true dawn begins at 4 a.m., then midnight will be at 11:30 p.m. The criteria for determining midnight are the timings of sunset and true dawn, which differ according to place and season.
https://www.sistani.org/english/book/46/2032/
My question is: When it comes to Salat al Maghreb and Isha, do we count that the time has passed by Sistanis definition of midnight, or the standard 00.00?