Well, the Hijri date 3 Rajab 1406 corresponds to the Gregorian date Thursday, 13 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 Thursday without any doubt. The Arabic date 1406/07/03 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 13 March 1986 to its equivalent Arabic date.
The following is the conversion of the Arabic date 3 Rajab 1406 AH to its equivalent Gregorian date.
فَلَا يَصُدَّنَّكَ عَنْهَا مَن لَّا يُؤْمِنُ بِهَا وَٱتَّبَعَ هَوَىٰهُ فَتَرْدَىٰ
Therefor, let not him turn thee aside from (the thought of) it who believeth not therein but followeth his own desire, lest thou perish.
Surah Taa-Haa(20:16)
Sahih al-Bukhari
Merits of the Helpers in Madinah (Ansaar)
Chapter: The splitting of the moon (into two pieces)
Narrated Anas bin Malik:
The people of Mecca asked Allah's Messenger (ﷺ) to show them a miracle. So he showed them the moon split in two halves between which they saw the Hira' mountain.
Sahih al-Bukhari 3868