Rabi’ Al-Awwal is the third month in the Hijri Calendar.
The most important event during this month is the birthday of Prophet Muhammad (PBUH).
Although the exact date is unknown, the majority of Muslim scholars believe the birth date of the noble prophet, peace and blessings be upon him, occurs on the 12th of Rabi’ Al-Awwal.
The Hijri Calendar is a lunar one, meaning that months begin when the first crescent of a new moon is sighted. And since this type of calendars is 11 to 12 days shorter than the solar year, Rabi’ Al-Awwal and all Hijri months migrate throughout the seasons.
The Astronomical New Moon (conjunction) is on October 6, 2021 (Wednesday) at 11:05 UT.
On October 6, the moon can only be seen by high powered telescope in North America and Western South America.
On October 7, it may be seen in Far-East, and Westward. Europe may see it with difficulty.
On October 8, it is visible to the entire universe.
The date normally held to be al-Mawlid (the birthday of Prophet Muhammad, peace and blessings be upon him) will be on Thursday the 19th of October 2021.