Well, the Hijri date 12 Ramadan 1409 corresponds to the Gregorian date Tuesday, 18 April 1989. This date lies in the ninth month of the Hijri year 1409 AH, which is Ramadan of 1409 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1409/09/12 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 April 1989 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Ramadan 1409 AH to its equivalent Gregorian date.
قُلْ أَرَءَيْتُمْ إِن كَانَ مِنْ عِندِ ٱللَّهِ وَكَفَرْتُم بِهِۦ وَشَهِدَ شَاهِدٌۭ مِّنۢ بَنِىٓ إِسْرَٰٓءِيلَ عَلَىٰ مِثْلِهِۦ فَـَٔامَنَ وَٱسْتَكْبَرْتُمْ ۖ إِنَّ ٱللَّهَ لَا يَهْدِى ٱلْقَوْمَ ٱلظَّٰلِمِينَ
Bethink you: If it is from Allah and ye disbelieve therein, and a witness of the Children of Israel hath already testified to the like thereof and hath believed, and ye are too proud (what plight is yours)? Lo! Allah guideth not wrong-doing folk.
Surah Al-Ahqaf(46:10)
Sahih al-Bukhari
Judgments (Ahkaam)
Chapter: To bear witness as to the writer of a stamped letter; and the letter of a ruler to a governor, and of a judge to a judge
Narrated Anas bin Malik:
When the Prophet (ﷺ) intended to write to the Byzantines, the people said, "They do not read a letter unless it is sealed (stamped)." Therefore the Prophet (ﷺ) took a silver ring----as if I am looking at its glitter now----and its engraving was: 'Muhammad, Apostle of Allah'.
Sahih al-Bukhari 7162