Well, the Hijri date 20 Rabi Al Thani 1404 corresponds to the Gregorian date Monday, 23 January 1984. This date lies in the fourth month of the Hijri year 1404 AH, which is Rabi Al-Thani of 1404 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1404/04/20 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 23 January 1984 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Rabi Al Thani 1404 AH to its equivalent Gregorian date.
قُلِ ٱدْعُوا۟ ٱللَّهَ أَوِ ٱدْعُوا۟ ٱلرَّحْمَٰنَ ۖ أَيًّۭا مَّا تَدْعُوا۟ فَلَهُ ٱلْأَسْمَآءُ ٱلْحُسْنَىٰ ۚ وَلَا تَجْهَرْ بِصَلَاتِكَ وَلَا تُخَافِتْ بِهَا وَٱبْتَغِ بَيْنَ ذَٰلِكَ سَبِيلًۭا
Say (unto mankind): Cry unto Allah, or cry unto the Beneficent, unto whichsoever ye cry (it is the same). His are the most beautiful names. And thou (Muhammad), be not loud-voiced in thy worship nor yet silent therein, but follow a way between.
Surah Al-Israa(17:110)