Well, the Hijri date 16 Muharram 1400 corresponds to the Gregorian date Wednesday, 5 December 1979. This date lies in the first month of the Hijri year 1400 AH, which is Muharram of 1400 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1400/01/16 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 5 December 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 16 Muharram 1400 AH to its equivalent Gregorian date.
فَمَن تَابَ مِنۢ بَعْدِ ظُلْمِهِۦ وَأَصْلَحَ فَإِنَّ ٱللَّهَ يَتُوبُ عَلَيْهِ ۗ إِنَّ ٱللَّهَ غَفُورٌۭ رَّحِيمٌ
But whoso repenteth after his wrongdoing and amendeth, lo! Allah will relent toward him. Lo! Allah is Forgiving, Merciful.
Surah Al-Maaida(5:39)