Well, the Hijri date 9 Rabi Al Thani 1409 corresponds to the Gregorian date Friday, 18 November 1988. This date lies in the fourth month of the Hijri year 1409 AH, which is Rabi Al-Thani of 1409 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1409/04/09 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 18 November 1988 to its equivalent Arabic date.
The following is the conversion of the Arabic date 9 Rabi Al Thani 1409 AH to its equivalent Gregorian date.
لَّٰكِنِ ٱلرَّٰسِخُونَ فِى ٱلْعِلْمِ مِنْهُمْ وَٱلْمُؤْمِنُونَ يُؤْمِنُونَ بِمَآ أُنزِلَ إِلَيْكَ وَمَآ أُنزِلَ مِن قَبْلِكَ ۚ وَٱلْمُقِيمِينَ ٱلصَّلَوٰةَ ۚ وَٱلْمُؤْتُونَ ٱلزَّكَوٰةَ وَٱلْمُؤْمِنُونَ بِٱللَّهِ وَٱلْيَوْمِ ٱلْءَاخِرِ أُو۟لَٰٓئِكَ سَنُؤْتِيهِمْ أَجْرًا عَظِيمًا
But those of them who are firm in knowledge and the believers believe in that which is revealed unto thee, and that which was revealed before thee, especially the diligent in prayer and those who pay the poor-due, the believers in Allah and the Last Day. Upon these We shall bestow immense reward.
Surah An-Nisaa(4:162)