Well, the Hijri date 15 Shawwal 1409 corresponds to the Gregorian date Saturday, 20 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 Saturday without any doubt. The Arabic date 1409/10/15 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 20 May 1989 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Shawwal 1409 AH to its equivalent Gregorian date.
قُل لِّلَّذِينَ ءَامَنُوا۟ يَغْفِرُوا۟ لِلَّذِينَ لَا يَرْجُونَ أَيَّامَ ٱللَّهِ لِيَجْزِىَ قَوْمًۢا بِمَا كَانُوا۟ يَكْسِبُونَ
Tell those who believe to forgive those who hope not for the days of Allah; in order that He may requite folk what they used to earn.
Surah Al-Jaathiya(45:14)
Sahih al-Bukhari
Rubbing hands and feet with dust (Tayammum)
Chapter: What to do if neither water nor earth is available
Narrated `Urwa's father:
Aisha said, "I borrowed a necklace from Asma' and it was lost. So Allah's Messenger (ﷺ) sent a man to search for it and he found it. Then the time of the prayer became due and there was no water. They prayed (without ablution) and informed Allah's Messenger (ﷺ) about it, so the verse of Tayammum was revealed." Usaid bin Hudair said to `Aisha, "May Allah reward you. By Allah, whenever anything happened which you did not like, Allah brought good for you and for the Muslims in that."
Sahih al-Bukhari 336