Well, the Hijri date 13 Muharram 1407 corresponds to the Gregorian date Wednesday, 17 September 1986. This date lies in the first month of the Hijri year 1407 AH, which is Muharram of 1407 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1407/01/13 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 17 September 1986 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Muharram 1407 AH to its equivalent Gregorian date.
قَالَ بَلْ سَوَّلَتْ لَكُمْ أَنفُسُكُمْ أَمْرًۭا ۖ فَصَبْرٌۭ جَمِيلٌ ۖ عَسَى ٱللَّهُ أَن يَأْتِيَنِى بِهِمْ جَمِيعًا ۚ إِنَّهُۥ هُوَ ٱلْعَلِيمُ ٱلْحَكِيمُ
(And when they came unto their father and had spoken thus to him) he said: Nay, but your minds have beguiled you into something. (My course is) comely patience! It may be that Allah will bring them all unto me. Lo! He, only He, is the Knower, the Wise.
Surah Yusuf(12:83)
Sahih al-Bukhari
Good Manners and Form (Al-Adab)
Chapter: A believer should conceal what sins he may commit
Narrated Safwan bin Muhriz:
A man asked Ibn `Umar, "What did you hear Allah's Messenger (ﷺ) saying regarding An-Najwa (secret talk between Allah and His believing worshipper on the Day of Judgment)?" He said, "(The Prophet (ﷺ) said), "One of you will come close to his Lord till He will shelter him in His screen and say: Did you commit such-and-such sin? He will say, 'Yes.' Then Allah will say: Did you commit such and such sin? He will say, 'Yes.' So Allah will make him confess (all his sins) and He will say, 'I screened them (your sins) for you in the world, and today I forgive them for you."'
Sahih al-Bukhari 6070