Well, the Hijri date 13 Safar 1420 corresponds to the Gregorian date Friday, 28 May 1999. This date lies in the second month of the Hijri year 1420 AH, which is Safar of 1420 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1420/02/13 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 28 May 1999 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Safar 1420 AH to its equivalent Gregorian date.
وَمَآ أَضَلَّنَآ إِلَّا ٱلْمُجْرِمُونَ
It was but the guilty who misled us.
Surah Ash-Shu'araa(26:99)
Sahih al-Bukhari
Call to Prayers (Adhaan)
Chapter: Talking during the Adhan
Narrated `Abdullah bin Al-Harith:
Once on a rainy muddy day, Ibn `Abbas delivered a sermon in our presence and when the Mu'adhdhin pronounced the Adhan and said, "Haiyi `ala-s-sala(t) (come for the prayer)" Ibn `Abbas ordered him to say 'Pray at your homes.' The people began to look at each other (surprisingly). Ibn `Abbas said. "It was done by one who was much better than I (i.e. the Prophet (ﷺ) or his Mu'adh-dhin), and it is a license.'
Sahih al-Bukhari 616