Well, the Hijri date 10 Muharram 1391 corresponds to the Gregorian date Sunday, 7 March 1971. This date lies in the first month of the Hijri year 1391 AH, which is Muharram of 1391 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1391/01/10 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 March 1971 to its equivalent Arabic date.
The following is the conversion of the Arabic date 10 Muharram 1391 AH to its equivalent Gregorian date.
وَزُخْرُفًۭا ۚ وَإِن كُلُّ ذَٰلِكَ لَمَّا مَتَٰعُ ٱلْحَيَوٰةِ ٱلدُّنْيَا ۚ وَٱلْءَاخِرَةُ عِندَ رَبِّكَ لِلْمُتَّقِينَ
And ornaments of gold. Yet all that would have been but a provision of the life of the world. And the Hereafter with your Lord would have been for those who keep from evil.
Surah Az-Zukhruf(43:35)