Well, the Hijri date 11 Dhul Hijjah 1399 corresponds to the Gregorian date Thursday, 1 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 Thursday without any doubt. The Arabic date 1399/12/11 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 1 November 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 11 Dhul Hijjah 1399 AH to its equivalent Gregorian date.
وَأُحِيطَ بِثَمَرِهِۦ فَأَصْبَحَ يُقَلِّبُ كَفَّيْهِ عَلَىٰ مَآ أَنفَقَ فِيهَا وَهِىَ خَاوِيَةٌ عَلَىٰ عُرُوشِهَا وَيَقُولُ يَٰلَيْتَنِى لَمْ أُشْرِكْ بِرَبِّىٓ أَحَدًۭا
And his fruit was beset (with destruction). Then began he to wring his hands for all that he had spent upon it, when (now) it was all ruined on its trellises, and to say: Would that I had ascribed no partner to my Lord!
Surah Al-Kahf(18:42)
