Well, the Hijri date 20 Muharram 1521 corresponds to the Gregorian date Wednesday, 1 May 2097. This date lies in the first month of the Hijri year 1521 AH, which is Muharram of 1521 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1521/01/20 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 1 May 2097 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Muharram 1521 AH to its equivalent Gregorian date.
كَذَّبَتْ قَبْلَهُمْ قَوْمُ نُوحٍۢ وَٱلْأَحْزَابُ مِنۢ بَعْدِهِمْ ۖ وَهَمَّتْ كُلُّ أُمَّةٍۭ بِرَسُولِهِمْ لِيَأْخُذُوهُ ۖ وَجَٰدَلُوا۟ بِٱلْبَٰطِلِ لِيُدْحِضُوا۟ بِهِ ٱلْحَقَّ فَأَخَذْتُهُمْ ۖ فَكَيْفَ كَانَ عِقَابِ
The folk of Noah and the factions after them denied (their messengers) before these, and every nation purposed to seize their messenger and argued falsely, (thinking) thereby to refute the Truth. Then I seized them, and how (awful) was My punishment.
Surah Ghafir(40:5)