Well, the Hijri date 14 Shawwal 1203 corresponds to the Gregorian date Tuesday, 7 July 1789. This date lies in the tenth month of the Hijri year 1203 AH, which is Shawwal of 1203 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1203/10/14 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 7 July 1789 to its equivalent Arabic date.
The following is the conversion of the Arabic date 14 Shawwal 1203 AH to its equivalent Gregorian date.
إِنْ هِىَ إِلَّآ أَسْمَآءٌۭ سَمَّيْتُمُوهَآ أَنتُمْ وَءَابَآؤُكُم مَّآ أَنزَلَ ٱللَّهُ بِهَا مِن سُلْطَٰنٍ ۚ إِن يَتَّبِعُونَ إِلَّا ٱلظَّنَّ وَمَا تَهْوَى ٱلْأَنفُسُ ۖ وَلَقَدْ جَآءَهُم مِّن رَّبِّهِمُ ٱلْهُدَىٰٓ
They are but names which ye have named, ye and your fathers, for which Allah hath revealed no warrant. They follow but a guess and that which (they) themselves desire. And now the guidance from their Lord hath come unto them.
Surah An-Najm(53:23)