Well, the Hijri date 13 Rajab 1400 corresponds to the Gregorian date Tuesday, 27 May 1980. This date lies in the seventh month of the Hijri year 1400 AH, which is Rajab of 1400 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1400/07/13 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 27 May 1980 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Rajab 1400 AH to its equivalent Gregorian date.
وَمِنْهُم مَّن يَقُولُ رَبَّنَآ ءَاتِنَا فِى ٱلدُّنْيَا حَسَنَةًۭ وَفِى ٱلْءَاخِرَةِ حَسَنَةًۭ وَقِنَا عَذَابَ ٱلنَّارِ
And of them (also) is he who saith: "Our Lord! Give unto us in the world that which is good and in the Hereafter that which is good, and guard us from the doom of Fire."
Surah Al-Baqara(2:201)
