Well, the Hijri date 7 Rabi Al Awwal 1420 corresponds to the Gregorian date Monday, 21 June 1999. This date lies in the third month of the Hijri year 1420 AH, which is Rabi Al-Awwal of 1420 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1420/03/07 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 21 June 1999 to its equivalent Arabic date.
The following is the conversion of the Arabic date 7 Rabi Al Awwal 1420 AH to its equivalent Gregorian date.
أَنَّىٰ لَهُمُ ٱلذِّكْرَىٰ وَقَدْ جَآءَهُمْ رَسُولٌۭ مُّبِينٌۭ
How can there be remembrance for them, when a messenger making plain (the Truth) had already come unto them,
Surah Ad-Dukhaan(44:13)
Sahih al-Bukhari
Dress
Chapter: Whoever drags his garment out of pride and arrogance
Narrated `Abdullah bin `Umar:
Allah's Messenger (ﷺ) said, "While a man was dragging his Izar on the ground (behind him), suddenly Allah made him sink into the earth and he will go on sinking into it till the Day of Resurrection." Narrated Abu Huraira: that he heard the Prophet (narrating as above No. 680).
Sahih al-Bukhari 5790