Well, the Hijri date 24 Rabi Al Awwal 1399 corresponds to the Gregorian date Wednesday, 21 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 Wednesday without any doubt. The Arabic date 1399/03/24 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 21 February 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 24 Rabi Al Awwal 1399 AH to its equivalent Gregorian date.
ٱنظُرْ كَيْفَ يَفْتَرُونَ عَلَى ٱللَّهِ ٱلْكَذِبَ ۖ وَكَفَىٰ بِهِۦٓ إِثْمًۭا مُّبِينًا
See, how they invent lies about Allah! That of itself is flagrant sin.
Surah An-Nisaa(4:50)
Sahih al-Bukhari
Virtues and Merits of the Prophet (pbuh) and his Companions
Chapter: The mention of the Qahtan tribe
Narrated Abu Hurairah (ra):
The Prophet (ﷺ) said, "The hour will not be established unless a man from the tribe of Qahtan appears, driving the people with his stick (ruling them with violence and oppression)."
Sahih al-Bukhari 3517