What is the ruling on performing the 'Isha and Tarawih prayers in the mosque approximately half an hour before the entry of the 'Isha prayer time, due to time constraints?

The time for 'Isha prayer begins when the red twilight disappears and extends until midnight. Whoever prays it before its time, their prayer is invalid, unless they are among those for whom combining prayers is permissible. If the prayer is performed before its time has entered, then the Imam and the congregants must be advised. If they do not respond, then seek another mosque. If the determination of the 'Isha prayer time is a matter of disagreement among Islamic centers and calendars, then you should pray with them, because in such a case, the matter falls under issues subject to scholarly discretion (ijtihad).