Well, the Hijri date 12 Shaban 1399 corresponds to the Gregorian date Friday, 6 July 1979. This date lies in the eighth month of the Hijri year 1399 AH, which is Shaban of 1399 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1399/08/12 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 6 July 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Shaban 1399 AH to its equivalent Gregorian date.
يَسْـَٔلُونَكَ مَاذَا يُنفِقُونَ ۖ قُلْ مَآ أَنفَقْتُم مِّنْ خَيْرٍۢ فَلِلْوَٰلِدَيْنِ وَٱلْأَقْرَبِينَ وَٱلْيَتَٰمَىٰ وَٱلْمَسَٰكِينِ وَٱبْنِ ٱلسَّبِيلِ ۗ وَمَا تَفْعَلُوا۟ مِنْ خَيْرٍۢ فَإِنَّ ٱللَّهَ بِهِۦ عَلِيمٌۭ
They ask thee, (O Muhammad), what they shall spend. Say: that which ye spend for good (must go) to parents and near kindred and orphans and the needy and the wayfarer. And whatsoever good ye do, lo! Allah is Aware of it.
Surah Al-Baqara(2:215)
Sahih al-Bukhari
Manumission of Slaves
Chapter: A slave who worships his Lord and he is also honest and faithful to his master
Narrated Ibn `Umar:
Allah's Messenger (ﷺ) said, "If a slave is honest and faithful to his master and worships his Lord (Allah) in a perfect manner, he will get a double reward."
Sahih al-Bukhari 2546