Well, the Hijri date 20 Rabi Al Awwal 1155 corresponds to the Gregorian date Thursday, 24 May 1742. This date lies in the third month of the Hijri year 1155 AH, which is Rabi Al-Awwal of 1155 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1155/03/20 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 24 May 1742 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Rabi Al Awwal 1155 AH to its equivalent Gregorian date.
۞ قَالَتْ رُسُلُهُمْ أَفِى ٱللَّهِ شَكٌّۭ فَاطِرِ ٱلسَّمَٰوَٰتِ وَٱلْأَرْضِ ۖ يَدْعُوكُمْ لِيَغْفِرَ لَكُم مِّن ذُنُوبِكُمْ وَيُؤَخِّرَكُمْ إِلَىٰٓ أَجَلٍۢ مُّسَمًّۭى ۚ قَالُوٓا۟ إِنْ أَنتُمْ إِلَّا بَشَرٌۭ مِّثْلُنَا تُرِيدُونَ أَن تَصُدُّونَا عَمَّا كَانَ يَعْبُدُ ءَابَآؤُنَا فَأْتُونَا بِسُلْطَٰنٍۢ مُّبِينٍۢ
Their messengers said: Can there be doubt concerning Allah, the Creator of the heavens and the earth? He calleth you that He may forgive you your sins and reprieve you unto an appointed term. They said: Ye are but mortals like us, who would fain turn us away from what our fathers used to worship. Then bring some clear warrant.
Surah Ibrahim(14:10)