Well, the Hijri date 13 Jumada Al Akhira 1358 corresponds to the Gregorian date Saturday, 29 July 1939. This date lies in the sixth month of the Hijri year 1358 AH, which is Jumada Al-Thani of 1358 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1358/06/13 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 29 July 1939 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Jumada Al Akhira 1358 AH to its equivalent Gregorian date.
۞ يَسْـَٔلُونَكَ عَنِ ٱلْأَهِلَّةِ ۖ قُلْ هِىَ مَوَٰقِيتُ لِلنَّاسِ وَٱلْحَجِّ ۗ وَلَيْسَ ٱلْبِرُّ بِأَن تَأْتُوا۟ ٱلْبُيُوتَ مِن ظُهُورِهَا وَلَٰكِنَّ ٱلْبِرَّ مَنِ ٱتَّقَىٰ ۗ وَأْتُوا۟ ٱلْبُيُوتَ مِنْ أَبْوَٰبِهَا ۚ وَٱتَّقُوا۟ ٱللَّهَ لَعَلَّكُمْ تُفْلِحُونَ
They ask thee, (O Muhammad), of new moons, say: They are fixed seasons for mankind and for the pilgrimage. It is not righteousness that ye go to houses by the backs thereof (as do the idolaters at certain seasons), but the righteous man is he who wardeth off (evil). So go to houses by the gates thereof, and observe your duty to Allah, that ye may be successful.
Surah Al-Baqara(2:189)
Sahih al-Bukhari
Fasting
Chapter: Observing Saum (fast) on the day of 'Ashura.
Narrated Aisha:
Quraish used to fast on the day of 'Ashura' in the Pre-Islamic period, and Allah's Messenger (ﷺ) too, used to fast on that day. When he came to Medina, he fasted on that day and ordered others to fast, too. Later when the fasting of the month of Ramadan was prescribed, he gave up fasting on the day of 'Ashura' and it became optional for one to fast on it or not.
Sahih al-Bukhari 2002