Well, the Hijri date 18 Rabi Al Awwal 1399 corresponds to the Gregorian date Thursday, 15 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 Thursday without any doubt. The Arabic date 1399/03/18 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 15 February 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Rabi Al Awwal 1399 AH to its equivalent Gregorian date.
إِنَّمَا تُنذِرُ مَنِ ٱتَّبَعَ ٱلذِّكْرَ وَخَشِىَ ٱلرَّحْمَٰنَ بِٱلْغَيْبِ ۖ فَبَشِّرْهُ بِمَغْفِرَةٍۢ وَأَجْرٍۢ كَرِيمٍ
Thou warnest only him who followeth the Reminder and feareth the Beneficent in secret. To him bear tidings of forgiveness and a rich reward.
Surah Yaseen(36:11)
Sahih al-Bukhari
Virtues of the Qur'an
Chapter: The compilation of the Qur'an
Narrated `Abdullah bin Mas`ud:
Surat Bani-lsrael, Al-Kahf (The Cave), Maryam, Taha, Al-Anbiya' (The prophets) are amongst my first earnings and my old property, and (in fact) they are my old property.
Sahih al-Bukhari 4994