Well, the Hijri date 18 Ramadan 1403 corresponds to the Gregorian date Wednesday, 29 June 1983. This date lies in the ninth month of the Hijri year 1403 AH, which is Ramadan of 1403 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1403/09/18 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 29 June 1983 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Ramadan 1403 AH to its equivalent Gregorian date.
وَمَا يَفْعَلُوا۟ مِنْ خَيْرٍۢ فَلَن يُكْفَرُوهُ ۗ وَٱللَّهُ عَلِيمٌۢ بِٱلْمُتَّقِينَ
And whatever good they do, they will not be denied the meed thereof. Allah is Aware of those who ward off (evil).
Surah Aal-i-Imraan(3:115)