Well, the Hijri date 21 Jumada Al Oula 1418 corresponds to the Gregorian date Monday, 22 September 1997. This date lies in the fifth month of the Hijri year 1418 AH, which is Jumada Al-Awwal of 1418 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1418/05/21 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 22 September 1997 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Jumada Al Oula 1418 AH to its equivalent Gregorian date.
وَٱلَّذِينَ هُمْ لِأَمَٰنَٰتِهِمْ وَعَهْدِهِمْ رَٰعُونَ
And who are shepherds of their pledge and their covenant,
Surah Al-Muminoon(23:8)