Well, the Hijri date 20 Shaban 1400 corresponds to the Gregorian date Wednesday, 2 July 1980. This date lies in the eighth month of the Hijri year 1400 AH, which is Shaban of 1400 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1400/08/20 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 2 July 1980 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Shaban 1400 AH to its equivalent Gregorian date.
۞ وَٱتْلُ عَلَيْهِمْ نَبَأَ نُوحٍ إِذْ قَالَ لِقَوْمِهِۦ يَٰقَوْمِ إِن كَانَ كَبُرَ عَلَيْكُم مَّقَامِى وَتَذْكِيرِى بِـَٔايَٰتِ ٱللَّهِ فَعَلَى ٱللَّهِ تَوَكَّلْتُ فَأَجْمِعُوٓا۟ أَمْرَكُمْ وَشُرَكَآءَكُمْ ثُمَّ لَا يَكُنْ أَمْرُكُمْ عَلَيْكُمْ غُمَّةًۭ ثُمَّ ٱقْضُوٓا۟ إِلَىَّ وَلَا تُنظِرُونِ
Recite unto them the story of Noah, when he told his people: O my people! If my sojourn (here) and my reminding you by Allah's revelations are an offence unto you, in Allah have I put my trust, so decide upon your course of action you and your partners. Let not your course of action be in doubt for you. Then have at me, give me no respite.
Surah Yunus(10:71)
Sahih al-Bukhari
Prayers (Salat)
Chapter: [During the obligatory Salat (prayers)] one should face the Qiblah (Kabah at Makkah) wherever one may be
Narrated Bara' bin `Azib:
Allah's Messenger (ﷺ) prayed facing Baitul-Maqdis for sixteen or seventeen months but he loved to face the Ka`ba (at Mecca) so Allah revealed: "Verily, We have seen the turning of your face to the heaven!" (2:144) So the Prophet (ﷺ) faced the Ka`ba and the fools amongst the people namely "the Jews" said, "What has turned them from their Qibla (Baitul-Maqdis) which they formerly observed"" (Allah revealed): "Say: 'To Allah belongs the East and the West. He guides whom he will to a straight path'." (2:142) A man prayed with the Prophet (facing the Ka`ba) and went out. He saw some of the Ansar praying the `Asr prayer with their faces towards Baitul-Maqdis, he said, "I bear witness that I prayed with Allah's Messenger (ﷺ) facing the Ka`ba." So all the people turned their faces towards the Ka`ba.
Sahih al-Bukhari 399