Well, the Hijri date 4 Muharram 1402 corresponds to the Gregorian date Saturday, 31 October 1981. This date lies in the first month of the Hijri year 1402 AH, which is Muharram of 1402 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1402/01/04 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 31 October 1981 to its equivalent Arabic date.
The following is the conversion of the Arabic date 4 Muharram 1402 AH to its equivalent Gregorian date.
۞ وَإِذِ ٱبْتَلَىٰٓ إِبْرَٰهِۦمَ رَبُّهُۥ بِكَلِمَٰتٍۢ فَأَتَمَّهُنَّ ۖ قَالَ إِنِّى جَاعِلُكَ لِلنَّاسِ إِمَامًۭا ۖ قَالَ وَمِن ذُرِّيَّتِى ۖ قَالَ لَا يَنَالُ عَهْدِى ٱلظَّٰلِمِينَ
And (remember) when his Lord tried Abraham with (His) commands, and he fulfilled them, He said: Lo! I have appointed thee a leader for mankind. (Abraham) said: And of my offspring (will there be leaders)? He said: My covenant includeth not wrong-doers.
Surah Al-Baqara(2:124)
