Well, the Hijri date 12 Muharram 1309 corresponds to the Gregorian date Monday, 17 August 1891. This date lies in the first month of the Hijri year 1309 AH, which is Muharram of 1309 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1309/01/12 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 17 August 1891 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Muharram 1309 AH to its equivalent Gregorian date.
وَقَالُوا۟ لَوْ كُنَّا نَسْمَعُ أَوْ نَعْقِلُ مَا كُنَّا فِىٓ أَصْحَٰبِ ٱلسَّعِيرِ
And they say: Had we been wont to listen or have sense, we had not been among the dwellers in the flames.
Surah Al-Mulk(67:10)