Well, the Hijri date 4 Shaban 1255 corresponds to the Gregorian date Saturday, 12 October 1839. This date lies in the eighth month of the Hijri year 1255 AH, which is Shaban of 1255 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1255/08/04 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 12 October 1839 to its equivalent Arabic date.
The following is the conversion of the Arabic date 4 Shaban 1255 AH to its equivalent Gregorian date.
قُلْ إِن كُنتُمْ تُحِبُّونَ ٱللَّهَ فَٱتَّبِعُونِى يُحْبِبْكُمُ ٱللَّهُ وَيَغْفِرْ لَكُمْ ذُنُوبَكُمْ ۗ وَٱللَّهُ غَفُورٌۭ رَّحِيمٌۭ
Say, (O Muhammad, to mankind): If ye love Allah, follow me; Allah will love you and forgive you your sins. Allah is Forgiving, Merciful.
Surah Aal-i-Imraan(3:31)