The date of Youman Nabi varies because it is based on the Islamic Hijri Calendar. The day is on day number 12 in the islamic month rabi al-awwal.
The Islamic Hijri Calendar is a lunar calendar, which means that the calendar depends on the lunar phases. This means that, in the next ten years, Youman Nabi varies between June 9 and September 15. In the table below you can see the date for Youman Nabi in the coming years in the western calendar (Gregorian calendar).
