Well, the Hijri date 13 Rabi Al Awwal 1399 corresponds to the Gregorian date Saturday, 10 February 1979. This date lies in the third month of the Hijri year 1399 AH, which is Rabi Al-Awwal of 1399 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1399/03/13 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 10 February 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Rabi Al Awwal 1399 AH to its equivalent Gregorian date.
قَالُوا۟ يَٰٓأَبَانَا ٱسْتَغْفِرْ لَنَا ذُنُوبَنَآ إِنَّا كُنَّا خَٰطِـِٔينَ
They said: O our father! Ask forgiveness of our sins for us, for lo! we were sinful.
Surah Yusuf(12:97)
Sahih al-Bukhari
To make the Heart Tender (Ar-Riqaq)
Chapter: Regarding Al-Haud
Abu Huraira narrated that the Prophet (ﷺ) said:
"On the Day of Resurrection a group of companions will come to me, but will be driven away from the Lake-Fount, and I will say, 'O Lord (those are) my companions!' It will be said, 'You have no knowledge as to what they innovated after you left; they turned apostate as renegades (reverted from Islam).
Sahih al-Bukhari 6585