Well, the Hijri date 21 Shawwal 1458 corresponds to the Gregorian date Tuesday, 9 December 2036. This date lies in the tenth month of the Hijri year 1458 AH, which is Shawwal of 1458 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1458/10/21 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 9 December 2036 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Shawwal 1458 AH to its equivalent Gregorian date.
قُلِ ٱدْعُوا۟ ٱلَّذِينَ زَعَمْتُم مِّن دُونِهِۦ فَلَا يَمْلِكُونَ كَشْفَ ٱلضُّرِّ عَنكُمْ وَلَا تَحْوِيلًا
Say: Cry unto those (saints and angels) whom ye assume (to be gods) beside Him, yet they have no power to rid you of misfortune nor to change.
Surah Al-Israa(17:56)