Well, the Hijri date 13 Muharram 1408 corresponds to the Gregorian date Sunday, 6 September 1987. This date lies in the first month of the Hijri year 1408 AH, which is Muharram of 1408 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1408/01/13 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 6 September 1987 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Muharram 1408 AH to its equivalent Gregorian date.
ءَأَشْفَقْتُمْ أَن تُقَدِّمُوا۟ بَيْنَ يَدَىْ نَجْوَىٰكُمْ صَدَقَٰتٍۢ ۚ فَإِذْ لَمْ تَفْعَلُوا۟ وَتَابَ ٱللَّهُ عَلَيْكُمْ فَأَقِيمُوا۟ ٱلصَّلَوٰةَ وَءَاتُوا۟ ٱلزَّكَوٰةَ وَأَطِيعُوا۟ ٱللَّهَ وَرَسُولَهُۥ ۚ وَٱللَّهُ خَبِيرٌۢ بِمَا تَعْمَلُونَ
Fear ye to offer alms before your conference? Then, when ye do it not and Allah hath forgiven you, establish worship and pay the poor-due and obey Allah and His messenger. And Allah is Aware of what ye do.
Surah Al-Mujaadila(58:13)