Well, the Hijri date 5 Rabi Al Awwal 1287 corresponds to the Gregorian date Saturday, 4 June 1870. This date lies in the third month of the Hijri year 1287 AH, which is Rabi Al-Awwal of 1287 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1287/03/05 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 4 June 1870 to its equivalent Arabic date.
The following is the conversion of the Arabic date 5 Rabi Al Awwal 1287 AH to its equivalent Gregorian date.
۞ وَلَقَدْ ءَاتَيْنَا دَاوُۥدَ مِنَّا فَضْلًۭا ۖ يَٰجِبَالُ أَوِّبِى مَعَهُۥ وَٱلطَّيْرَ ۖ وَأَلَنَّا لَهُ ٱلْحَدِيدَ
And assuredly We gave David grace from Us, (saying): O ye hills and birds, echo his psalms of praise! And We made the iron supple unto him,
Surah Saba(34:10)