Well, the Hijri date 1 Rajab 1375 corresponds to the Gregorian date Sunday, 12 February 1956. This date lies in the seventh month of the Hijri year 1375 AH, which is Rajab of 1375 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1375/07/01 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 12 February 1956 to its equivalent Arabic date.
The following is the conversion of the Arabic date 1 Rajab 1375 AH to its equivalent Gregorian date.
ثُمَّ ٱجْتَبَٰهُ رَبُّهُۥ فَتَابَ عَلَيْهِ وَهَدَىٰ
Then his Lord chose him, and relented toward him, and guided him.
Surah Taa-Haa(20:122)
Sahih al-Bukhari
Good Manners and Form (Al-Adab)
Chapter: What kinds of poetry, Rajaz and Huda is allowed
Narrated Anas bin Malik:
The Prophet (ﷺ) came to some of his wives among whom there was Um Sulaim, and said, "May Allah be merciful to you, O Anjasha! Drive the camels slowly, as they are carrying glass vessels!" Abu Qalaba said, "The Prophet (ﷺ) said a sentence (i.e. the above metaphor) which, had anyone of you said it, you would have admonished him for it".
Sahih al-Bukhari 6149