Well, the Hijri date 7 Rajab 1400 corresponds to the Gregorian date Wednesday, 21 May 1980. This date lies in the seventh month of the Hijri year 1400 AH, which is Rajab of 1400 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1400/07/07 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 21 May 1980 to its equivalent Arabic date.
The following is the conversion of the Arabic date 7 Rajab 1400 AH to its equivalent Gregorian date.
إِنَّهُۥ هُوَ يُبْدِئُ وَيُعِيدُ
Surah Al-Burooj(85:13)
Sahih al-Bukhari
Prophets
Chapter: The Statement of Allah Taa'la: "And mention in the Book, Maryam..."
Narrated Sa`id bin Al-Musaiyab:
Abu Huraira said, "I heard Allah's Messenger (ﷺ) saying, 'There is none born among the off-spring of Adam, but Satan touches it. A child therefore, cries loudly at the time of birth because of the touch of Satan, except Mary and her child." Then Abu Huraira recited: "And I seek refuge with You for her and for her offspring from the outcast Satan" (3.36)
Sahih al-Bukhari 3431