Well, the Hijri date 21 Jumada Al Oula 1424 corresponds to the Gregorian date Monday, 21 July 2003. This date lies in the fifth month of the Hijri year 1424 AH, which is Jumada Al-Awwal of 1424 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1424/05/21 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 July 2003 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Jumada Al Oula 1424 AH to its equivalent Gregorian date.
وَإِذَا قِيلَ لَهُم مَّاذَآ أَنزَلَ رَبُّكُمْ ۙ قَالُوٓا۟ أَسَٰطِيرُ ٱلْأَوَّلِينَ
And when it is said unto them: What hath your Lord revealed? they say: (Mere) fables of the men of old,
Surah An-Nahl(16:24)