Well, the Hijri date 28 Rajab 1401 corresponds to the Gregorian date Monday, 1 June 1981. This date lies in the seventh month of the Hijri year 1401 AH, which is Rajab of 1401 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1401/07/28 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 1 June 1981 to its equivalent Arabic date.
The following is the conversion of the Arabic date 28 Rajab 1401 AH to its equivalent Gregorian date.
أَمِ ٱتَّخَذُوا۟ مِن دُونِ ٱللَّهِ شُفَعَآءَ ۚ قُلْ أَوَلَوْ كَانُوا۟ لَا يَمْلِكُونَ شَيْـًۭٔا وَلَا يَعْقِلُونَ
Or choose they intercessors other than Allah? Say: What! Even though they have power over nothing and have no intelligence?
Surah Az-Zumar(39:43)
Sahih al-Bukhari
Good Manners and Form (Al-Adab)
Chapter: The establishment of a bond of brotherhood and the conclusion of a treaty
Narrated Anas:
When `Abdur-Rahman came to us, the Prophet (ﷺ) established a bond of brotherhood between him and Sa`d bin Ar-Rabi`. Once the Prophet (ﷺ) said, "As you (O `Abdur-Rahman) have married, give a wedding banquet even if with one sheep."
Sahih al-Bukhari 6082