Well, the Hijri date 18 Jumada Al Oula 1237 corresponds to the Gregorian date Saturday, 9 February 1822. This date lies in the fifth month of the Hijri year 1237 AH, which is Jumada Al-Awwal of 1237 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1237/05/18 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 9 February 1822 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Jumada Al Oula 1237 AH to its equivalent Gregorian date.
وَمَا لَكُمْ أَلَّا تُنفِقُوا۟ فِى سَبِيلِ ٱللَّهِ وَلِلَّهِ مِيرَٰثُ ٱلسَّمَٰوَٰتِ وَٱلْأَرْضِ ۚ لَا يَسْتَوِى مِنكُم مَّنْ أَنفَقَ مِن قَبْلِ ٱلْفَتْحِ وَقَٰتَلَ ۚ أُو۟لَٰٓئِكَ أَعْظَمُ دَرَجَةًۭ مِّنَ ٱلَّذِينَ أَنفَقُوا۟ مِنۢ بَعْدُ وَقَٰتَلُوا۟ ۚ وَكُلًّۭا وَعَدَ ٱللَّهُ ٱلْحُسْنَىٰ ۚ وَٱللَّهُ بِمَا تَعْمَلُونَ خَبِيرٌۭ
And what aileth you that ye spend not in the way of Allah when unto Allah belongeth the inheritance of the heavens and the earth? Those who spent and fought before the victory are not upon a level (with the rest of you). Such are greater in rank than those who spent and fought afterwards. Unto each hath Allah promised good. And Allah is Informed of what ye do.
Surah Al-Hadid(57:10)