Well, the Hijri date 20 Dhul Qidah 1390 corresponds to the Gregorian date Sunday, 17 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 1390/11/20 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 17 January 1971 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Dhul Qidah 1390 AH to its equivalent Gregorian date.
لَّا يَمْلِكُونَ ٱلشَّفَٰعَةَ إِلَّا مَنِ ٱتَّخَذَ عِندَ ٱلرَّحْمَٰنِ عَهْدًۭا
They will have no power of intercession, save him who hath made a covenant with his Lord.
Surah Maryam(19:87)
Sahih al-Bukhari
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
Chapter
Narrated `Urwa bin Al-Mughira:
Al-Mughira bin Shu`ba, said, "The Prophet (ﷺ) went out to answer the call of nature and (when he had finished) I got up to pour water for him." I think that he said that the event had taken place during the Ghazwa of Tabuk. Al-Mughira added. "The Prophet (ﷺ) washed his face, and when he wanted to wash his forearms, the sleeves of his cloak became tight over them, so he took them out from underneath the cloak and then he washed them (i.e. his forearms) and passed wet hands over his Khuffs (socks made from thick fabric or leather)."
Sahih al-Bukhari 4421