Well, the Hijri date 20 Rajab 1406 corresponds to the Gregorian date Sunday, 30 March 1986. This date lies in the seventh month of the Hijri year 1406 AH, which is Rajab of 1406 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1406/07/20 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 30 March 1986 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Rajab 1406 AH to its equivalent Gregorian date.
وَلَمَّا بَلَغَ أَشُدَّهُۥٓ ءَاتَيْنَٰهُ حُكْمًۭا وَعِلْمًۭا ۚ وَكَذَٰلِكَ نَجْزِى ٱلْمُحْسِنِينَ
And And when he reached his prime We gave him wisdom and knowledge. Thus We reward the good.
Surah Yusuf(12:22)
Sahih al-Bukhari
Merits of the Helpers in Madinah (Ansaar)
Chapter: The coming of the Jews to the Prophet (saws) on his arrival at Al-Madina
Narrated `Abdullah bin `Abbas:
The Prophet (ﷺ) used to keep his hair falling loose while the pagans used to part their hair, and the People of the Scriptures used to keep their hair falling loose, and the Prophet (ﷺ) liked to follow the People of the Scriptures in matters about which he had not been instructed differently, but later on the Prophet (ﷺ) started parting his hair.
Sahih al-Bukhari 3944