Yeah, the head of the Caliphate who sits in what was Constantinople and uses a moon based calendar as well as a different clock. But don't let facts get in the way of your favorite fantasy.Actually, YHWH uses a moon based calendar. The Roman church changed that, and the Sabbath, and the Holy Days.
But the Muslims are but a distraction in this - They do not claim YHWH. They do not claim YHWH's Oracles. They worship a different god.
Good, you and the Muzzie “distraction” will get along just fine when the distraction is slitting throats.