Well, the Hijri date 20 Rabi Al Awwal 1423 corresponds to the Gregorian date Saturday, 1 June 2002. This date lies in the third month of the Hijri year 1423 AH, which is Rabi Al-Awwal of 1423 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1423/03/20 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 1 June 2002 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Rabi Al Awwal 1423 AH to its equivalent Gregorian date.
إِذْ تَقُولُ لِلْمُؤْمِنِينَ أَلَن يَكْفِيَكُمْ أَن يُمِدَّكُمْ رَبُّكُم بِثَلَٰثَةِ ءَالَٰفٍۢ مِّنَ ٱلْمَلَٰٓئِكَةِ مُنزَلِينَ
When thou didst say unto the believers: Is it not sufficient for you that your Lord should support you with three thousand angels sent down (to your help)?
Surah Aal-i-Imraan(3:124)