Depends on the ghoul. They all pray during Mass, and usually in the evening. Some ghouls neglect their prayer life, but most of them don't. They all have a certain day of the week that they spend most of the day in prayer for Father Satan. It genuinely depends on the ghoul. If they want to go and pray in the chapel, they can, no matter what time of day.
Most prefer to pray with Papa when he is in prayer, which is during the evenings when he goes to the chapel to pray.
