Well, the Hijri date 23 Jumada Al Oula 1391 corresponds to the Gregorian date Thursday, 15 July 1971. This date lies in the fifth month of the Hijri year 1391 AH, which is Jumada Al-Awwal of 1391 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1391/05/23 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 15 July 1971 to its equivalent Arabic date.
The following is the conversion of the Arabic date 23 Jumada Al Oula 1391 AH to its equivalent Gregorian date.
لِيُبَيِّنَ لَهُمُ ٱلَّذِى يَخْتَلِفُونَ فِيهِ وَلِيَعْلَمَ ٱلَّذِينَ كَفَرُوٓا۟ أَنَّهُمْ كَانُوا۟ كَٰذِبِينَ
That He may explain unto them that wherein they differ, and that those who disbelieved may know that they were liars.
Surah An-Nahl(16:39)
Sahih al-Bukhari
One-fifth of Booty to the Cause of Allah (Khumus)
Chapter: The houses of the wives of the Prophet saws
Narrated Aisha:
That Allah's Messenger (ﷺ) used to offer the `Asr prayer while the sun was still shining in her Hujra (i.e. her dwelling place).
Sahih al-Bukhari 3103