Well, the Hijri date 18 Shawwal 1399 corresponds to the Gregorian date Sunday, 9 September 1979. This date lies in the tenth month of the Hijri year 1399 AH, which is Shawwal of 1399 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1399/10/18 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 9 September 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Shawwal 1399 AH to its equivalent Gregorian date.
وَرَءَا ٱلْمُجْرِمُونَ ٱلنَّارَ فَظَنُّوٓا۟ أَنَّهُم مُّوَاقِعُوهَا وَلَمْ يَجِدُوا۟ عَنْهَا مَصْرِفًۭا
And the guilty behold the Fire and know that they are about to fall therein, and they find no way of escape thence.
Surah Al-Kahf(18:53)
Sahih al-Bukhari
To make the Heart Tender (Ar-Riqaq)
Chapter: The gathering (on the Day of Resurrection)
Narrated Abu Huraira:
The Prophet (ﷺ) said, "The first man to be called on the Day of Resurrection will be Adam who will be shown his offspring, and it will be said to them, 'This is your father, Adam.' Adam will say (responding to the call), 'Labbaik and Sa`daik' Then Allah will say (to Adam), 'Take out of your offspring, the people of Hell.' Adam will say, 'O Lord, how many should I take out?' Allah will say, 'Take out ninety-nine out of every hundred." They (the Prophet's companions) said, "O Allah's Apostle! If ninety-nine out of every one hundred of us are taken away, what will remain out of us?" He said, "My followers in comparison to the other nations are like a white hair on a black ox."
Sahih al-Bukhari 6529