Performing Esha Salaah before it's time
Q: Recently board of imam in Melbourne- Victoria has decided to pray salatul isha before the due time on the basis of convenience for musallis. Not all mosques are doing this. As far as I know two of my neighborhood mosques have started this practice. Like in my closest mosque, Imam saheb has started to pray Salatul Isha on 10:15 PM whereas according to calendar due time for Salatul Isha is 10:33 PM. We pray Salatul Fajar at 4:45 AM. I believe board of IMAMs has decided solely on the basis of convenience so that musallis can have good rest and can come to Fajar prayer in the morning as the night is short during summer times.
As a hanafi follower if I pray with the Jamat at the earlier time, would my salat be acceptable? If not should I stop going to the mosque and pray at home/garage or go to another place to pray?