Well, the Hijri date 14 Dhul Qidah 1390 corresponds to the Gregorian date Monday, 11 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 Monday without any doubt. The Arabic date 1390/11/14 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 11 January 1971 to its equivalent Arabic date.
The following is the conversion of the Arabic date 14 Dhul Qidah 1390 AH to its equivalent Gregorian date.
وَمَآ أَنتَ إِلَّا بَشَرٌۭ مِّثْلُنَا وَإِن نَّظُنُّكَ لَمِنَ ٱلْكَٰذِبِينَ
Thou art but a mortal like us, and lo! we deem thee of the liars.
Surah Ash-Shu'araa(26:186)
Sahih al-Bukhari
Good Manners and Form (Al-Adab)
Chapter: To be gentle and polite with the people.
Narrated `Abdullah bin Abu Mulaika:
The Prophet (ﷺ) was given a gift of a few silken cloaks with gold buttons. He distributed them amongst some of his companions and put aside one of them for Makhrama. When Makhrama came, the Prophet said, "I kept this for you." (Aiyub, the sub-narrator held his garment to show how the Prophet (ﷺ) showed the cloak to Makhrama who had something unfavorable about his temper.)
Sahih al-Bukhari 6132