Well, the Hijri date 11 Muharram 1511 corresponds to the Gregorian date Sunday, 10 August 2087. This date lies in the first month of the Hijri year 1511 AH, which is Muharram of 1511 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1511/01/11 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 10 August 2087 to its equivalent Arabic date.
The following is the conversion of the Arabic date 11 Muharram 1511 AH to its equivalent Gregorian date.
فَأَمَّا ٱلَّذِينَ ءَامَنُوا۟ وَعَمِلُوا۟ ٱلصَّٰلِحَٰتِ فَيُوَفِّيهِمْ أُجُورَهُمْ وَيَزِيدُهُم مِّن فَضْلِهِۦ ۖ وَأَمَّا ٱلَّذِينَ ٱسْتَنكَفُوا۟ وَٱسْتَكْبَرُوا۟ فَيُعَذِّبُهُمْ عَذَابًا أَلِيمًۭا وَلَا يَجِدُونَ لَهُم مِّن دُونِ ٱللَّهِ وَلِيًّۭا وَلَا نَصِيرًۭا
Then, as for those who believed and did good works, unto them will He pay their wages in full, adding unto them of His bounty; and as for those who were scornful and proud, them will He punish with a painful doom. And they will not find for them, against Allah, any protecting friend or helper.
Surah An-Nisaa(4:173)