Well, the Hijri date 21 Shawwal 1363 corresponds to the Gregorian date Sunday, 8 October 1944. This date lies in the tenth month of the Hijri year 1363 AH, which is Shawwal of 1363 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1363/10/21 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 8 October 1944 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Shawwal 1363 AH to its equivalent Gregorian date.
وَلَقَدْ فَتَنَّا ٱلَّذِينَ مِن قَبْلِهِمْ ۖ فَلَيَعْلَمَنَّ ٱللَّهُ ٱلَّذِينَ صَدَقُوا۟ وَلَيَعْلَمَنَّ ٱلْكَٰذِبِينَ
Lo! We tested those who were before you. Thus Allah knoweth those who are sincere, and knoweth those who feign.
Surah Al-Ankaboot(29:3)
Sahih al-Bukhari
Fasting
Chapter: Fasting is obligatory in (the month of) Ramadan
Narrated `Aisha:
(The tribe of) Quraish used to fast on the day of Ashura' in the Pre-Islamic period, and then Allah's Apostle ordered (Muslims) to fast on it till the fasting in the month of Ramadan was prescribed; whereupon the Prophet (ﷺ) said, "He who wants to fast (on 'Ashura') may fast, and he who does not want to fast may not fast."
Sahih al-Bukhari 1893