Well, the Hijri date 20 Dhul Hijjah 1401 corresponds to the Gregorian date Sunday, 18 October 1981. This date lies in the twelfth month of the Hijri year 1401 AH, which is Dhu Al-Hijjah of 1401 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1401/12/20 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 October 1981 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Dhul Hijjah 1401 AH to its equivalent Gregorian date.
وَمِنْهُم مَّن يَسْتَمِعُ إِلَيْكَ ۖ وَجَعَلْنَا عَلَىٰ قُلُوبِهِمْ أَكِنَّةً أَن يَفْقَهُوهُ وَفِىٓ ءَاذَانِهِمْ وَقْرًۭا ۚ وَإِن يَرَوْا۟ كُلَّ ءَايَةٍۢ لَّا يُؤْمِنُوا۟ بِهَا ۚ حَتَّىٰٓ إِذَا جَآءُوكَ يُجَٰدِلُونَكَ يَقُولُ ٱلَّذِينَ كَفَرُوٓا۟ إِنْ هَٰذَآ إِلَّآ أَسَٰطِيرُ ٱلْأَوَّلِينَ
Surah Al-An'aam(6:25)
Sahih al-Bukhari
Merits of the Helpers in Madinah (Ansaar)
Chapter: “O Allah! Improve and make right the state of the Ansar and the Muhajirun
Narrated Anas bin Malik:
Allah's Messenger (ﷺ) said, "There is no life except the life of the Hereafter; so, O Allah! Improve the state of the Ansar and the Muhajirun." And Anas added that the Prophet (ﷺ) also said, "O Allah! Forgive the Ansar."
Sahih al-Bukhari 3795