Well, the Hijri date 21 Dhul Hijjah 1422 corresponds to the Gregorian date Tuesday, 5 March 2002. This date lies in the twelfth month of the Hijri year 1422 AH, which is Dhu Al-Hijjah of 1422 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1422/12/21 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 5 March 2002 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Dhul Hijjah 1422 AH to its equivalent Gregorian date.
وَكَذَٰلِكَ نَجْزِى مَنْ أَسْرَفَ وَلَمْ يُؤْمِنۢ بِـَٔايَٰتِ رَبِّهِۦ ۚ وَلَعَذَابُ ٱلْءَاخِرَةِ أَشَدُّ وَأَبْقَىٰٓ
Surah Taa-Haa(20:127)
Sahih al-Bukhari
Knowledge
Chapter: The Prophet (saws) urged the people (mission) of 'Abdul Qais to memorize the faith and the (religious) knowledge (as he explained to them) and to inform (convey) to their people whom they left behind (at home)
Narrated Abu Jamra:
I was an interpreter between the people and Ibn `Abbas. Once Ibn `Abbas said that a delegation of the tribe of `Abdul Qais came to the Prophet (ﷺ) who asked them, "Who are the people (i.e. you)? (Or) who are the delegates?" They replied, "We are from the tribe of Rabi`a." Then the Prophet (ﷺ) said to them, "Welcome, O people (or said, "O delegation (of `Abdul Qais).") Neither will you have disgrace nor will you regret." They said, "We have come to you from a distant place and there is the tribe of the infidels of Mudar intervening between you and us and we cannot come to you except in the sacred month. So please order us to do something good (religious deeds) and that we may also inform our people whom we have left behind (at home) and that we may enter Paradise (by acting on them.)" The Prophet ordered them to do four things, and forbade them from four things. He ordered them to believe in Allah Alone, the Honorable the Majestic and said to them, "Do you know what is meant by believing in Allah Alone?" They replied, "Allah and His Apostle know better." Thereupon the Prophet (ﷺ) said, "(That means to testify that none has the right to be worshipped but Allah and that Muhammad is His Apostle, to offer prayers perfectly, to pay Zakat, to observe fasts during the month of Ramadan, (and) to pay Al-Khumus (one fifth of the booty to be given in Allah's cause)." Then he forbade them four things, namely Ad-Dubba.' Hantam, Muzaffat (and) An-Naqir or Muqaiyar (These were the names of pots in which alcoholic drinks used to be prepared). The Prophet (ﷺ) further said, "Memorize them (these instructions) and tell them to the people whom you have left behind."
Sahih al-Bukhari 87