Well, the Hijri date 12 Rabi Al Awwal 1258 corresponds to the Gregorian date Friday, 22 April 1842. This date lies in the third month of the Hijri year 1258 AH, which is Rabi Al-Awwal of 1258 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1258/03/12 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 22 April 1842 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Rabi Al Awwal 1258 AH to its equivalent Gregorian date.
وَنَادَىٰٓ أَصْحَٰبُ ٱلْأَعْرَافِ رِجَالًۭا يَعْرِفُونَهُم بِسِيمَىٰهُمْ قَالُوا۟ مَآ أَغْنَىٰ عَنكُمْ جَمْعُكُمْ وَمَا كُنتُمْ تَسْتَكْبِرُونَ
And the dwellers on the Heights call unto men whom they know by their marks, (saying): What did your multitude and that in which ye took your pride avail you?
Surah Al-A'raaf(7:48)