Well, the Hijri date 14 Muharram 1366 corresponds to the Gregorian date Saturday, 7 December 1946. This date lies in the first month of the Hijri year 1366 AH, which is Muharram of 1366 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1366/01/14 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 7 December 1946 to its equivalent Arabic date.
The following is the conversion of the Arabic date 14 Muharram 1366 AH to its equivalent Gregorian date.
قَدْ كَانَ لَكُمْ ءَايَةٌۭ فِى فِئَتَيْنِ ٱلْتَقَتَا ۖ فِئَةٌۭ تُقَٰتِلُ فِى سَبِيلِ ٱللَّهِ وَأُخْرَىٰ كَافِرَةٌۭ يَرَوْنَهُم مِّثْلَيْهِمْ رَأْىَ ٱلْعَيْنِ ۚ وَٱللَّهُ يُؤَيِّدُ بِنَصْرِهِۦ مَن يَشَآءُ ۗ إِنَّ فِى ذَٰلِكَ لَعِبْرَةًۭ لِّأُو۟لِى ٱلْأَبْصَٰرِ
There was a token for you in two hosts which met: one army fighting in the way of Allah, and another disbelieving, whom they saw as twice their number, clearly, with their very eyes. Thus Allah strengtheneth with His succour whom He will. Lo! herein verily is a lesson for those who have eyes.
Surah Aal-i-Imraan(3:13)