Well, the Hijri date 20 Rabi Al Thani 1459 corresponds to the Gregorian date Thursday, 4 June 2037. This date lies in the fourth month of the Hijri year 1459 AH, which is Rabi Al-Thani of 1459 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1459/04/20 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 4 June 2037 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Rabi Al Thani 1459 AH to its equivalent Gregorian date.
وَإِذَا حُيِّيتُم بِتَحِيَّةٍۢ فَحَيُّوا۟ بِأَحْسَنَ مِنْهَآ أَوْ رُدُّوهَآ ۗ إِنَّ ٱللَّهَ كَانَ عَلَىٰ كُلِّ شَىْءٍ حَسِيبًا
When ye are greeted with a greeting, greet ye with a better than it or return it. Lo! Allah taketh count of all things.
Surah An-Nisaa(4:86)
Sahih al-Bukhari
Funerals (Al-Janaa'iz)
Chapter: What is disliked of establishing places of worship (mosques) over the graves,
Narrated `Urwa:
Aisha said, "The Prophet (ﷺ) in his fatal illness said, 'Allah cursed the Jews and the Christians because they took the graves of their Prophets as places for praying."' Aisha added, "Had it not been for that, the grave of the Prophet (p.b.u.h) would have been made prominent but I am afraid it might be taken (as a) place for praying.
Sahih al-Bukhari 1330