Well, the Hijri date 21 Jumada Al Akhira 1420 corresponds to the Gregorian date Friday, 1 October 1999. This date lies in the sixth month of the Hijri year 1420 AH, which is Jumada Al-Thani of 1420 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1420/06/21 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 1 October 1999 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Jumada Al Akhira 1420 AH to its equivalent Gregorian date.
فَٱدْخُلُوٓا۟ أَبْوَٰبَ جَهَنَّمَ خَٰلِدِينَ فِيهَا ۖ فَلَبِئْسَ مَثْوَى ٱلْمُتَكَبِّرِينَ
So enter the gates of hell, to dwell therein for ever. Woeful indeed will be the lodging of the arrogant.
Surah An-Nahl(16:29)
Sahih al-Bukhari
Merits of the Helpers in Madinah (Ansaar)
Chapter: The emigration of the Prophet (saws) to Al-Madina
Narrated Abu Sa`id:
Once a bedouin came to the Prophet (ﷺ) and asked him about the migration. The Prophet (ﷺ) said, "Mercy of Allah be on you! The migration is a quite difficult matter. Have you got some camels?" He replied in the affirmative. Then the Prophet (ﷺ) said, "Do you give their Zakat?" He replied in the affirmative. The Prophet said, "Do you let others benefit by their milk gratis?" He replied in the affirmative. Then the Prophet asked, "Do you milk them on their watering days and give their milk to the poor and needy?" He replied in the affirmative. The Prophet, said, "Go on doing like this from beyond the seas, and there is no doubt that Allah will not overlook any of your good deeds."
Sahih al-Bukhari 3923