Well, the Hijri date 1 Ramadan 1400 corresponds to the Gregorian date Sunday, 13 July 1980. This date lies in the ninth month of the Hijri year 1400 AH, which is Ramadan of 1400 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1400/09/01 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 13 July 1980 to its equivalent Arabic date.
The following is the conversion of the Arabic date 1 Ramadan 1400 AH to its equivalent Gregorian date.
وَجَآءَهُۥ قَوْمُهُۥ يُهْرَعُونَ إِلَيْهِ وَمِن قَبْلُ كَانُوا۟ يَعْمَلُونَ ٱلسَّيِّـَٔاتِ ۚ قَالَ يَٰقَوْمِ هَٰٓؤُلَآءِ بَنَاتِى هُنَّ أَطْهَرُ لَكُمْ ۖ فَٱتَّقُوا۟ ٱللَّهَ وَلَا تُخْزُونِ فِى ضَيْفِىٓ ۖ أَلَيْسَ مِنكُمْ رَجُلٌۭ رَّشِيدٌۭ
And his people came unto him, running towards him - and before then they used to commit abominations - He said: O my people! Here are my daughters! They are purer for you. Beware of Allah, and degrade me not in (the person of) my guests. Is there not among you any upright man?
Surah Hud(11:78)
Sahih al-Bukhari
Judgments (Ahkaam)
Chapter: To judge cases involving wealth
Narrated Um Salama:
The Prophet (ﷺ) heard the voices of some people quarreling near his gate, so he went to them and said, "I am only a human being and litigants with cases of disputes come to me, and maybe one of them presents his case eloquently in a more convincing and impressive way than the other, and I give my verdict in his favor thinking he is truthful. So if I give a Muslim's right to another (by mistake), then that (property) is a piece of Fire, which is up to him to take it or leave it." (See Hadith No. 281 )
Sahih al-Bukhari 7185