Well, the Hijri date 23 Dhul Hijjah 1390 corresponds to the Gregorian date Thursday, 18 February 1971. This date lies in the twelfth month of the Hijri year 1390 AH, which is Dhu Al-Hijjah of 1390 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1390/12/23 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 18 February 1971 to its equivalent Arabic date.
The following is the conversion of the Arabic date 23 Dhul Hijjah 1390 AH to its equivalent Gregorian date.
قَالَ فَٱذْهَبْ فَإِنَّ لَكَ فِى ٱلْحَيَوٰةِ أَن تَقُولَ لَا مِسَاسَ ۖ وَإِنَّ لَكَ مَوْعِدًۭا لَّن تُخْلَفَهُۥ ۖ وَٱنظُرْ إِلَىٰٓ إِلَٰهِكَ ٱلَّذِى ظَلْتَ عَلَيْهِ عَاكِفًۭا ۖ لَّنُحَرِّقَنَّهُۥ ثُمَّ لَنَنسِفَنَّهُۥ فِى ٱلْيَمِّ نَسْفًا
(Moses) said: Then go! and lo! in this life it is for thee to say: Touch me not! and lo! there is for thee a tryst thou canst not break. Now look upon thy god of which thou hast remained a votary. Verily we will burn it and will scatter its dust over the sea.
Surah Taa-Haa(20:97)