Well, the Hijri date 15 Safar 1399 corresponds to the Gregorian date Saturday, 13 January 1979. This date lies in the second month of the Hijri year 1399 AH, which is Safar of 1399 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1399/02/15 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 13 January 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Safar 1399 AH to its equivalent Gregorian date.
هُوَ ٱلَّذِى يُسَيِّرُكُمْ فِى ٱلْبَرِّ وَٱلْبَحْرِ ۖ حَتَّىٰٓ إِذَا كُنتُمْ فِى ٱلْفُلْكِ وَجَرَيْنَ بِهِم بِرِيحٍۢ طَيِّبَةٍۢ وَفَرِحُوا۟ بِهَا جَآءَتْهَا رِيحٌ عَاصِفٌۭ وَجَآءَهُمُ ٱلْمَوْجُ مِن كُلِّ مَكَانٍۢ وَظَنُّوٓا۟ أَنَّهُمْ أُحِيطَ بِهِمْ ۙ دَعَوُا۟ ٱللَّهَ مُخْلِصِينَ لَهُ ٱلدِّينَ لَئِنْ أَنجَيْتَنَا مِنْ هَٰذِهِۦ لَنَكُونَنَّ مِنَ ٱلشَّٰكِرِينَ
He it is Who maketh you to go on the land and the sea till, when ye are in the ships and they sail with them with a fair breeze and they are glad therein, a storm-wind reacheth them and the wave cometh unto them from every side and they deem that they are overwhelmed therein; (then) they cry unto Allah, making their faith pure for Him only: If Thou deliver us from this, we truly will be of the thankful.
Surah Yunus(10:22)