Well, the Hijri date 12 Muharram 1412 corresponds to the Gregorian date Tuesday, 23 July 1991. This date lies in the first month of the Hijri year 1412 AH, which is Muharram of 1412 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1412/01/12 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 23 July 1991 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Muharram 1412 AH to its equivalent Gregorian date.
فَكَذَّبُوهُمَا فَكَانُوا۟ مِنَ ٱلْمُهْلَكِينَ
So they denied them, and became of those who were destroyed.
Surah Al-Muminoon(23:48)
Sahih al-Bukhari
Virtues of the Qur'an
Chapter: How the Divine Revelation used to be revealed and what was the first thing revealed
Narrated Abu Huraira:
The Prophet (ﷺ) said, "Every Prophet was given miracles because of which people believed, but what I have been given, is Divine Inspiration which Allah has revealed to me. So I hope that my followers will outnumber the followers of the other Prophets on the Day of Resurrection."
Sahih al-Bukhari 4981