Well, the Hijri date 28 Rajab 1227 corresponds to the Gregorian date Thursday, 6 August 1812. This date lies in the seventh month of the Hijri year 1227 AH, which is Rajab of 1227 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1227/07/28 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 6 August 1812 to its equivalent Arabic date.
The following is the conversion of the Arabic date 28 Rajab 1227 AH to its equivalent Gregorian date.
۞ وَقَيَّضْنَا لَهُمْ قُرَنَآءَ فَزَيَّنُوا۟ لَهُم مَّا بَيْنَ أَيْدِيهِمْ وَمَا خَلْفَهُمْ وَحَقَّ عَلَيْهِمُ ٱلْقَوْلُ فِىٓ أُمَمٍۢ قَدْ خَلَتْ مِن قَبْلِهِم مِّنَ ٱلْجِنِّ وَٱلْإِنسِ ۖ إِنَّهُمْ كَانُوا۟ خَٰسِرِينَ
And We assigned them comrades (in the world), who made their present and their past fairseeming unto them. And the Word concerning nations of the jinn and humankind who passed away before them hath effect for them. Lo! they were ever losers.
Surah Fussilat(41:25)