Well, the Hijri date 11 Ramadan 1473 corresponds to the Gregorian date Sunday, 21 May 2051. This date lies in the ninth month of the Hijri year 1473 AH, which is Ramadan of 1473 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1473/09/11 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 21 May 2051 to its equivalent Arabic date.
The following is the conversion of the Arabic date 11 Ramadan 1473 AH to its equivalent Gregorian date.
إِن تَكْفُرُوا۟ فَإِنَّ ٱللَّهَ غَنِىٌّ عَنكُمْ ۖ وَلَا يَرْضَىٰ لِعِبَادِهِ ٱلْكُفْرَ ۖ وَإِن تَشْكُرُوا۟ يَرْضَهُ لَكُمْ ۗ وَلَا تَزِرُ وَازِرَةٌۭ وِزْرَ أُخْرَىٰ ۗ ثُمَّ إِلَىٰ رَبِّكُم مَّرْجِعُكُمْ فَيُنَبِّئُكُم بِمَا كُنتُمْ تَعْمَلُونَ ۚ إِنَّهُۥ عَلِيمٌۢ بِذَاتِ ٱلصُّدُورِ
If ye are thankless, yet Allah is Independent of you, though He is not pleased with thanklessness for His bondmen; and if ye are thankful He is pleased therewith for you. No laden soul will bear another's load. Then unto your Lord is your return; and He will tell you what ye used to do. Lo! He knoweth what is in the breasts (of men).
Surah Az-Zumar(39:7)