Well, the Hijri date 13 Rajab 1273 corresponds to the Gregorian date Sunday, 8 March 1857. This date lies in the seventh month of the Hijri year 1273 AH, which is Rajab of 1273 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1273/07/13 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 8 March 1857 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Rajab 1273 AH to its equivalent Gregorian date.
إِنَّ فِى ٱخْتِلَٰفِ ٱلَّيْلِ وَٱلنَّهَارِ وَمَا خَلَقَ ٱللَّهُ فِى ٱلسَّمَٰوَٰتِ وَٱلْأَرْضِ لَءَايَٰتٍۢ لِّقَوْمٍۢ يَتَّقُونَ
Lo! in the difference of day and night and all that Allah hath created in the heavens and the earth are portents, verily, for folk who ward off (evil).
Surah Yunus(10:6)