Well, the Hijri date 20 Muharram 1458 corresponds to the Gregorian date Tuesday, 18 March 2036. This date lies in the first month of the Hijri year 1458 AH, which is Muharram of 1458 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1458/01/20 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 18 March 2036 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Muharram 1458 AH to its equivalent Gregorian date.
كَذَٰلِكَ وَقَدْ أَحَطْنَا بِمَا لَدَيْهِ خُبْرًۭا
So (it was). And We knew all concerning him.
Surah Al-Kahf(18:91)
Sahih al-Bukhari
Hajj (Pilgrimage)
Chapter: Whosoever sent the weak early (from Al-Muzdalifa to Mina)
Narrated `Aisha:
Sauda asked the permission of the Prophet (ﷺ) to leave earlier at the night of Jam', and she was a fat and very slow woman. The Prophet (ﷺ) gave her permission.
Sahih al-Bukhari 1680