Well, the Hijri date 8 Dhul Hijjah 1403 corresponds to the Gregorian date Thursday, 15 September 1983. This date lies in the twelfth month of the Hijri year 1403 AH, which is Dhu Al-Hijjah of 1403 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1403/12/08 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 15 September 1983 to its equivalent Arabic date.
The following is the conversion of the Arabic date 8 Dhul Hijjah 1403 AH to its equivalent Gregorian date.
وَقُلِ ٱعْمَلُوا۟ فَسَيَرَى ٱللَّهُ عَمَلَكُمْ وَرَسُولُهُۥ وَٱلْمُؤْمِنُونَ ۖ وَسَتُرَدُّونَ إِلَىٰ عَٰلِمِ ٱلْغَيْبِ وَٱلشَّهَٰدَةِ فَيُنَبِّئُكُم بِمَا كُنتُمْ تَعْمَلُونَ
And say (unto them): Act! Allah will behold your actions, and (so will) His messenger and the believers, and ye will be brought back to the Knower of the Invisible and the Visible, and He will tell you what ye used to do.
Surah At-Tawba(9:105)