Well, the Hijri date 10 Rajab 1399 corresponds to the Gregorian date Tuesday, 5 June 1979. This date lies in the seventh month of the Hijri year 1399 AH, which is Rajab of 1399 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1399/07/10 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 5 June 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 10 Rajab 1399 AH to its equivalent Gregorian date.
ٱدْخُلُوا۟ ٱلْجَنَّةَ أَنتُمْ وَأَزْوَٰجُكُمْ تُحْبَرُونَ
Enter the Garden, ye and your wives, to be made glad.
Surah Az-Zukhruf(43:70)
Sahih al-Bukhari
Hajj (Pilgrimage)
Chapter: Talbiya and Takbir in the morning of the day of Nahr till the Ramy of Jamarat-al-'Aqaba
Narrated Ibn `Abbas:
The Prophet (ﷺ) made Al-Fadl ride behind him, and Al-Fadl informed that he (the Prophet (ﷺ) ) kept on reciting Talbiya till he did the Rami of the Jamra. (Jamrat-Al-`Aqaba.)
Sahih al-Bukhari 1685