Well, the Hijri date 1 Shaban 1274 corresponds to the Gregorian date Tuesday, 16 March 1858. This date lies in the eighth month of the Hijri year 1274 AH, which is Shaban of 1274 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1274/08/01 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 16 March 1858 to its equivalent Arabic date.
The following is the conversion of the Arabic date 1 Shaban 1274 AH to its equivalent Gregorian date.
ثُمَّ رُدُّوٓا۟ إِلَى ٱللَّهِ مَوْلَىٰهُمُ ٱلْحَقِّ ۚ أَلَا لَهُ ٱلْحُكْمُ وَهُوَ أَسْرَعُ ٱلْحَٰسِبِينَ
Then are they restored unto Allah, their Lord, the Just. Surely His is the judgment. And He is the most swift of reckoners.
Surah Al-An'aam(6:62)