Well, the Hijri date 13 Rabi Al Awwal 1406 corresponds to the Gregorian date Monday, 25 November 1985. This date lies in the third month of the Hijri year 1406 AH, which is Rabi Al-Awwal of 1406 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1406/03/13 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 25 November 1985 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Rabi Al Awwal 1406 AH to its equivalent Gregorian date.
وَمَا تَنقِمُ مِنَّآ إِلَّآ أَنْ ءَامَنَّا بِـَٔايَٰتِ رَبِّنَا لَمَّا جَآءَتْنَا ۚ رَبَّنَآ أَفْرِغْ عَلَيْنَا صَبْرًۭا وَتَوَفَّنَا مُسْلِمِينَ
Thou takest vengeance on us only forasmuch as we believed the tokens of our Lord when they came unto us. Our Lord! Vouchsafe unto us steadfastness and make us die as men who have surrendered (unto Thee).
Surah Al-A'raaf(7:126)