Well, the Hijri date 13 Shawwal 1378 corresponds to the Gregorian date Tuesday, 21 April 1959. This date lies in the tenth month of the Hijri year 1378 AH, which is Shawwal of 1378 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1378/10/13 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 April 1959 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Shawwal 1378 AH to its equivalent Gregorian date.
لَوْ أَرَدْنَآ أَن نَّتَّخِذَ لَهْوًۭا لَّٱتَّخَذْنَٰهُ مِن لَّدُنَّآ إِن كُنَّا فَٰعِلِينَ
If We had wished to find a pastime, We could have found it in Our presence - if We ever did.
Surah Al-Anbiyaa(21:17)
Sahih al-Bukhari
Partnership
Chapter: Ten sheep as equal to one camel in distribution
Narrated Abaya bin Rifaa:
My grandfather, Rafi` bin Khadij said, "We were in the valley of Dhul-Hulaifa of Tuhama in the company of the Prophet (ﷺ) and had some camels and sheep (of the booty). The people hurried (in slaughtering the animals) and put their meat in the pots and started cooking. Allah's Messenger (ﷺ) came and ordered them to upset the pots, and distributed the booty considering one camel as equal to ten sheep. One of the camels fled and the people had only a few horses, so they got worried. (The camel was chased and) a man slopped the camel by throwing an arrow at it. Allah's Messenger (ﷺ) said, 'Some of these animals are untamed like wild animals, so if anyone of them went out of your control, then you should treat it as you have done now.' " My grandfather said, "O Allah's Messenger (ﷺ)! We fear that we may meet our enemy tomorrow and we have no knives, could we slaughter the animals with reeds?" The Prophet (ﷺ) said, "Yes, or you can use what would make blood flow (slaughter) and you can eat what is slaughtered and the Name of Allah is mentioned at the time of slaughtering. But don't use teeth or fingernails (in slaughtering). I will tell you why, as for teeth, they are bones, and fingernails are used by Ethiopians for slaughtering. (See Hadith 668)
Sahih al-Bukhari 2507