Well, the Hijri date 1 Jumada Al Akhira 1366 corresponds to the Gregorian date Tuesday, 22 April 1947. This date lies in the sixth month of the Hijri year 1366 AH, which is Jumada Al-Thani of 1366 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1366/06/01 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 22 April 1947 to its equivalent Arabic date.
The following is the conversion of the Arabic date 1 Jumada Al Akhira 1366 AH to its equivalent Gregorian date.
وَهُوَ ٱلَّذِى يُرْسِلُ ٱلرِّيَٰحَ بُشْرًۢا بَيْنَ يَدَىْ رَحْمَتِهِۦ ۖ حَتَّىٰٓ إِذَآ أَقَلَّتْ سَحَابًۭا ثِقَالًۭا سُقْنَٰهُ لِبَلَدٍۢ مَّيِّتٍۢ فَأَنزَلْنَا بِهِ ٱلْمَآءَ فَأَخْرَجْنَا بِهِۦ مِن كُلِّ ٱلثَّمَرَٰتِ ۚ كَذَٰلِكَ نُخْرِجُ ٱلْمَوْتَىٰ لَعَلَّكُمْ تَذَكَّرُونَ
And He it is Who sendeth the winds as tidings heralding His mercy, till, when they bear a cloud heavy (with rain), We lead it to a dead land, and then cause water to descend thereon and thereby bring forth fruits of every kind. Thus bring We forth the dead. Haply ye may remember.
Surah Al-A'raaf(7:57)
Sahih al-Bukhari
Fasting
Chapter: The Saum (fasting) of Da'wud (David) alayhis salam.
Narrated `Abdullah bin `Amr bin Al-`As:
The Prophet (ﷺ) said to me, "You fast daily all the year and pray every night all the night?" I replied in the affirmative. The Prophet (ﷺ) said, "If you keep on doing this, your eyes will become weak and your body will get tired. He who fasts all the year is as he who did not fast at all. The fasting of three days (a month) will be equal to the fasting of the whole year." I replied, "I have the power for more than this." The Prophet (ﷺ) said, "Then fast like the fasting of David who used to fast on alternate days and would never flee from the battle field, on meeting the enemy."
Sahih al-Bukhari 1979