السلام عليكم ورحمة الله وبركاته Ya sheikh in my uni there’s no mosque and I pray my mandatory prayers in a prayer hall and there’s no sound of adhan, can I pray right as the clock hits the time for the prayer ? As people start the jamat right as the clock hits the time of prayer.

Ustadh AbdulAziz al-Haqqan

Sure, if that is the correct time.