Well, the Hijri date 27 Dhul Qidah 1390 corresponds to the Gregorian date Sunday, 24 January 1971. This date lies in the eleventh month of the Hijri year 1390 AH, which is Dhu Al-Qidah of 1390 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1390/11/27 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 24 January 1971 to its equivalent Arabic date.
The following is the conversion of the Arabic date 27 Dhul Qidah 1390 AH to its equivalent Gregorian date.
ذَٰلِكَ لِيَعْلَمَ أَنِّى لَمْ أَخُنْهُ بِٱلْغَيْبِ وَأَنَّ ٱللَّهَ لَا يَهْدِى كَيْدَ ٱلْخَآئِنِينَ
(Then Joseph said: I asked for) this, that he (my lord) may know that I betrayed him not in secret, and that surely Allah guideth not the snare of the betrayers.
Surah Yusuf(12:52)