Well, the Hijri date 4 Muharram 1375 corresponds to the Gregorian date Sunday, 21 August 1955. This date lies in the first month of the Hijri year 1375 AH, which is Muharram of 1375 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1375/01/04 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 21 August 1955 to its equivalent Arabic date.
The following is the conversion of the Arabic date 4 Muharram 1375 AH to its equivalent Gregorian date.
وَلِتَصْغَىٰٓ إِلَيْهِ أَفْـِٔدَةُ ٱلَّذِينَ لَا يُؤْمِنُونَ بِٱلْءَاخِرَةِ وَلِيَرْضَوْهُ وَلِيَقْتَرِفُوا۟ مَا هُم مُّقْتَرِفُونَ
That the hearts of those who believe not in the Hereafter may incline thereto, and that they may take pleasure therein, and that they may earn what they are earning.
Surah Al-An'aam(6:113)
Sahih al-Bukhari
Hajj (Pilgrimage)
Chapter: It is obligatory to perform Hajj
Narrated `Abdullah bin `Abbas:
Al-Fadl (his brother) was riding behind Allah's Messenger (ﷺ) and a woman from the tribe of Khath'am came and Al-Fadl started looking at her and she started looking at him. The Prophet (ﷺ) turned Al-Fadl's face to the other side. The woman said, "O Allah's Messenger (ﷺ)! The obligation of Hajj enjoined by Allah on His devotees has become due on my father and he is old and weak, and he cannot sit firm on the Mount; may I perform Hajj on his behalf?" The Prophet (ﷺ) replied, "Yes, you may." That happened during the Hajj-al-Wida (of the Prophet (ﷺ) ).
Sahih al-Bukhari 1513