Well, the Hijri date 20 Muharram 1408 corresponds to the Gregorian date Sunday, 13 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 1408/01/20 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 13 September 1987 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Muharram 1408 AH to its equivalent Gregorian date.
عَٰلِيَهُمْ ثِيَابُ سُندُسٍ خُضْرٌۭ وَإِسْتَبْرَقٌۭ ۖ وَحُلُّوٓا۟ أَسَاوِرَ مِن فِضَّةٍۢ وَسَقَىٰهُمْ رَبُّهُمْ شَرَابًۭا طَهُورًا
Their raiment will be fine green silk and gold embroidery. Bracelets of silver will they wear. Their Lord will slake their thirst with a pure drink.
Surah Al-Insaan(76:21)
Sahih al-Bukhari
Funerals (Al-Janaa'iz)
Chapter: The recitation of Surah Al-Fathiha in the funeral Salat
Narrated Talha bin `Abdullah bin `Auf:
I offered the funeral prayer behind Ibn `Abbas and he recited Al-Fatiha and said, "You should know that it (i.e. recitation of Al-Fatiha) is the tradition of the Prophet (ﷺ) Muhammad.
Sahih al-Bukhari 1335