Well, the Hijri date 15 Rabi Al Thani 1412 corresponds to the Gregorian date Tuesday, 22 October 1991. This date lies in the fourth month of the Hijri year 1412 AH, which is Rabi Al-Thani of 1412 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1412/04/15 is calculated using the Umm Al-Qura calendar and the sighting of the moon. One thing to remember is that this Arabic date may occur on different Gregorian date depending upon the region and country and obviously the moon.
If you are still not sure about the date then you can use our Arabic date converter.
The following is the conversion of the Gregorian date 22 October 1991 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Rabi Al Thani 1412 AH to its equivalent Gregorian date.
إِلَّا مَنْ هُوَ صَالِ ٱلْجَحِيمِ
Save him who is to burn in hell.
Surah As-Saaffaat(37:163)
Sahih al-Bukhari
Beginning of Creation
Chapter: Characteristic of the sun and the moon
Narrated `Abdullah bin `Umar:
The Prophet (ﷺ) said, "The sun and the moon do not eclipse because of someone's death or life (i.e. birth), but they are two signs amongst the Signs of Allah. So, if you see them (i.e. eclipse) offer the (eclipse) prayer.
Sahih al-Bukhari 3201