Well, the Hijri date 21 Dhul Qidah 1451 corresponds to the Gregorian date Monday, 25 March 2030. This date lies in the eleventh month of the Hijri year 1451 AH, which is Dhu Al-Qidah of 1451 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1451/11/21 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 25 March 2030 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Dhul Qidah 1451 AH to its equivalent Gregorian date.
وَمَا كَانَ جَوَابَ قَوْمِهِۦٓ إِلَّآ أَن قَالُوٓا۟ أَخْرِجُوهُم مِّن قَرْيَتِكُمْ ۖ إِنَّهُمْ أُنَاسٌۭ يَتَطَهَّرُونَ
And the answer of his people was only that they said (one to another): Turn them out of your township. They are folk, forsooth, who keep pure.
Surah Al-A'raaf(7:82)