Well, the Hijri date 18 Shawwal 1409 corresponds to the Gregorian date Tuesday, 23 May 1989. This date lies in the tenth month of the Hijri year 1409 AH, which is Shawwal of 1409 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1409/10/18 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 May 1989 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Shawwal 1409 AH to its equivalent Gregorian date.
أَلَمْ تَرَ إِلَىٰ رَبِّكَ كَيْفَ مَدَّ ٱلظِّلَّ وَلَوْ شَآءَ لَجَعَلَهُۥ سَاكِنًۭا ثُمَّ جَعَلْنَا ٱلشَّمْسَ عَلَيْهِ دَلِيلًۭا
Hast thou not seen how thy Lord hath spread the shade - And if He willed He could have made it still - then We have made the sun its pilot;
Surah Al-Furqaan(25:45)
Sahih al-Bukhari
Virtues of the Qur'an
Chapter: The superiority of Fatiha-til-Kitab
Narrated Abu Sa`id Al-Mu'alla:
While I was praying, the Prophet (ﷺ) called me but I did not respond to his call. Later I said, "O Allah's Apostle! I was praying." He said, "Didn't Allah say: 'O you who believe! Give your response to Allah (by obeying Him) and to His Apostle when he calls you'?" (8.24) He then said, "Shall I not teach you the most superior Surah in the Qur'an?" He said, '(It is), 'Praise be to Allah, the Lord of the worlds. ' (i.e., Surat Al-Fatiha) which consists of seven repeatedly recited Verses and the Magnificent Qur'an which was given to me."
Sahih al-Bukhari 5006