Well, the Hijri date 13 Rabi Al Thani 1219 corresponds to the Gregorian date Saturday, 21 July 1804. This date lies in the fourth month of the Hijri year 1219 AH, which is Rabi Al-Thani of 1219 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1219/04/13 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 21 July 1804 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Rabi Al Thani 1219 AH to its equivalent Gregorian date.
فَٱصْبِرْ إِنَّ وَعْدَ ٱللَّهِ حَقٌّۭ وَٱسْتَغْفِرْ لِذَنۢبِكَ وَسَبِّحْ بِحَمْدِ رَبِّكَ بِٱلْعَشِىِّ وَٱلْإِبْكَٰرِ
Then have patience (O Muhammad). Lo! the promise of Allah is true. And ask forgiveness of thy sin, and hymn the praise of thy Lord at fall of night and in the early hours.
Surah Ghafir(40:55)