Well, the Hijri date 23 Dhul Hijjah 1399 corresponds to the Gregorian date Tuesday, 13 November 1979. This date lies in the twelfth month of the Hijri year 1399 AH, which is Dhu Al-Hijjah of 1399 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1399/12/23 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 13 November 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 23 Dhul Hijjah 1399 AH to its equivalent Gregorian date.
فَغُلِبُوا۟ هُنَالِكَ وَٱنقَلَبُوا۟ صَٰغِرِينَ
Thus were they there defeated and brought low.
Surah Al-A'raaf(7:119)
Sahih al-Bukhari
Friday Prayer
Chapter: Adhan on Friday (for the Jumu'ah prayer)
Narrated As-Saib bin Yazid:
In the lifetime of the Prophet, Abu Bakr and `Umar, the Adhan for the Jumua prayer used to be pronounced when the Imam sat on the pulpit. But during the Caliphate of `Uthman when the Muslims increased in number, a third Adhan at Az-Zaura' was added. Abu `Abdullah said, "Az-Zaura' is a place in the market of Medina."
Sahih al-Bukhari 912