Well, the Hijri date 16 Rajab 1401 corresponds to the Gregorian date Wednesday, 20 May 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 Wednesday without any doubt. The Arabic date 1401/07/16 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 20 May 1981 to its equivalent Arabic date.
The following is the conversion of the Arabic date 16 Rajab 1401 AH to its equivalent Gregorian date.
Surah (:)
Sahih al-Bukhari
Companions of the Prophet
Chapter: "If I were to take Khalil ..."
Narrated Ibn `Abbas:
While I was standing amongst the people who were invoking Allah for `Umar bin Al-Khattab who was lying (dead) on his bed, a man behind me rested his elbows on my shoulder and said, "(O `Umar!) May Allah bestow His Mercy on you. I always hoped that Allah will keep you with your two companions, for I often heard Allah's Messenger (ﷺ) saying, "I, Abu Bakr and `Umar were (somewhere). I, Abu Bakr and `Umar did (something). I, Abu Bakr and `Umar set out.' So I hoped that Allah will keep you with both of them." I turned back to see that the speaker was `Ali bin Abi Talib.
Sahih al-Bukhari 3677