Well, the Hijri date 20 Jumada Al Oula 1330 corresponds to the Gregorian date Tuesday, 7 May 1912. This date lies in the fifth month of the Hijri year 1330 AH, which is Jumada Al-Awwal of 1330 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1330/05/20 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 May 1912 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Jumada Al Oula 1330 AH to its equivalent Gregorian date.
وَٱلَّذِينَ هُم بِـَٔايَٰتِ رَبِّهِمْ يُؤْمِنُونَ
And those who believe in the revelations of their Lord,
Surah Al-Muminoon(23:58)