If a Majlis concludes at Maghrib and Matam occurs instead of performing Salat, does that mean the prayer is not done on time? Is a 15-20 minute delay in congregational prayer considered to still be praying on time?
Imam Husain (AS) never delayed the Salat even when he was in the mid of fighting in Karbala. We are supposed to follow Imam Husain (AS) not our own thoughts. We should plan the timings of the Majlis and Matam both to finish before the time of Salat.
Wassalam.