Well, the Hijri date 12 Dhul Qidah 1399 corresponds to the Gregorian date Wednesday, 3 October 1979. This date lies in the eleventh month of the Hijri year 1399 AH, which is Dhu Al-Qidah of 1399 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1399/11/12 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 3 October 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Dhul Qidah 1399 AH to its equivalent Gregorian date.
فَكَأَيِّن مِّن قَرْيَةٍ أَهْلَكْنَٰهَا وَهِىَ ظَالِمَةٌۭ فَهِىَ خَاوِيَةٌ عَلَىٰ عُرُوشِهَا وَبِئْرٍۢ مُّعَطَّلَةٍۢ وَقَصْرٍۢ مَّشِيدٍ
How many a township have We destroyed while it was sinful, so that it lieth (to this day) in ruins, and (how many) a deserted well and lofty tower!
Surah Al-Hajj(22:45)
Sahih al-Bukhari
Invoking Allah for Rain (Istisqaa)
Chapter: The Istisqa' prayer consists of two Rak'a
Narrated `Abbad bin Tamim from his uncle who said:
"The Prophet (ﷺ) invoked Allah for rain and offered a two rak`at prayer and he put his cloak inside out."
Sahih al-Bukhari 1026