Well, the Hijri date 27 Jumada Al Oula 1405 corresponds to the Gregorian date Sunday, 17 February 1985. This date lies in the fifth month of the Hijri year 1405 AH, which is Jumada Al-Awwal of 1405 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1405/05/27 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 17 February 1985 to its equivalent Arabic date.
The following is the conversion of the Arabic date 27 Jumada Al Oula 1405 AH to its equivalent Gregorian date.
وَلَقَدْ صَرَّفْنَا لِلنَّاسِ فِى هَٰذَا ٱلْقُرْءَانِ مِن كُلِّ مَثَلٍۢ فَأَبَىٰٓ أَكْثَرُ ٱلنَّاسِ إِلَّا كُفُورًۭا
And verily We have displayed for mankind in this Qur'an all kind of similitudes, but most of mankind refuse aught save disbelief.
Surah Al-Israa(17:89)
Sahih al-Bukhari
Holding Fast to the Qur'an and Sunnah
Chapter: “Do not ask the people of the Scripture about anything.”
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Narrated Humaid bin 'Abdur-Rahman that he heard Mu'awiya talking to a group of people from Quraish at Al-Madina, and on mentioning Ka'b Al-Ashbar, he said, "He was one of the most truthful of those who used to talk about the people of the Scripture, yet we used to detect certain faults in his information."
Sahih al-Bukhari 7361