In Algeria, Prophet Muhammad’s Birthday takes place on 12 Rabi al Awwal on the Muslim Calendar, but the date will regress by 11 days annually on the Gregorian Calendar.
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|2020||29 Oct||Thu||Prophet Muhammad's Birthday|
The reckoning of Muhammad’s birth date on the twelfth day of Rabi al Awwal is the Sunni standard, but Shiites keep it on the seventeenth of that same month instead. And there are even some Muslims who think it improper to celebration birth anniversaries, and thus, do not observe Prophet Muhammad’s Birthday.