Well, the Hijri date 15 Rajab 1373 corresponds to the Gregorian date Saturday, 20 March 1954. This date lies in the seventh month of the Hijri year 1373 AH, which is Rajab of 1373 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1373/07/15 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 20 March 1954 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Rajab 1373 AH to its equivalent Gregorian date.
ٱلَّذِينَ يَحْمِلُونَ ٱلْعَرْشَ وَمَنْ حَوْلَهُۥ يُسَبِّحُونَ بِحَمْدِ رَبِّهِمْ وَيُؤْمِنُونَ بِهِۦ وَيَسْتَغْفِرُونَ لِلَّذِينَ ءَامَنُوا۟ رَبَّنَا وَسِعْتَ كُلَّ شَىْءٍۢ رَّحْمَةًۭ وَعِلْمًۭا فَٱغْفِرْ لِلَّذِينَ تَابُوا۟ وَٱتَّبَعُوا۟ سَبِيلَكَ وَقِهِمْ عَذَابَ ٱلْجَحِيمِ
Those who bear the Throne, and all who are round about it, hymn the praises of their Lord and believe in Him and ask forgiveness for those who believe (saying): Our Lord! Thou comprehendest all things in mercy and knowledge, therefor forgive those who repent and follow Thy way. Ward off from them the punishment of hell.
Surah Ghafir(40:7)
Sahih al-Bukhari
Virtues and Merits of the Prophet (pbuh) and his Companions
Chapter: The death of the Prophet (saws)
Narrated `Aisha:
The Prophet (ﷺ) died when he was sixty three years old.
Sahih al-Bukhari 3536