Well, the Hijri date 20 Rajab 1355 corresponds to the Gregorian date Monday, 5 October 1936. This date lies in the seventh month of the Hijri year 1355 AH, which is Rajab of 1355 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1355/07/20 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 5 October 1936 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Rajab 1355 AH to its equivalent Gregorian date.
فَإِذَا مَسَّ ٱلْإِنسَٰنَ ضُرٌّۭ دَعَانَا ثُمَّ إِذَا خَوَّلْنَٰهُ نِعْمَةًۭ مِّنَّا قَالَ إِنَّمَآ أُوتِيتُهُۥ عَلَىٰ عِلْمٍۭ ۚ بَلْ هِىَ فِتْنَةٌۭ وَلَٰكِنَّ أَكْثَرَهُمْ لَا يَعْلَمُونَ
Now when hurt toucheth a man he crieth unto Us, and afterward when We have granted him a boon from Us, he saith: Only by force of knowledge I obtained it. Nay, but it is a test. But most of them know not.
Surah Az-Zumar(39:49)
Sahih al-Bukhari
Sales and Trade
Chapter: Al-Hajjam (i.e. the one who practises cupping)
Narrated Anas bin Malik:
Abu Taiba cupped Allah's Messenger (ﷺ) so he ordered that he be paid one Sa of dates and ordered his masters to reduce his tax (as he was a slave and had to pay a tax to them).
Sahih al-Bukhari 2102