How can prayers be combined or performed in consideration of class schedules that prevent leaving to perform the prayer on time?

University officials must adjust timings so they do not conflict with prayer times. A Muslim must pray on time, as Allah Almighty says: "Indeed, prayer has been decreed upon the believers a book [to be observed at] appointed times." It is not permissible to combine Asr, Maghrib, and Isha prayers. The maximum permissible combination, out of necessity and not habitually, is between Dhuhr and Asr, or Maghrib and Isha. If an experiment does not conclude until after sunset, it is permissible to combine Asr with Dhuhr by praying it earlier (jama' taqdim). As for Maghrib prayer, the general rule is to perform it at its prescribed time. If one fears missing their companions, it can be combined with Isha by delaying it (jama' ta'khir). Whoever cannot perform their obligatory prayers due to studies must leave them and move to a place where they can establish the rituals of their religion, for Allah Almighty says: "And whoever fears Allah – He will make for him a way out And will provide for him from where he does not expect."