Well, the Hijri date 11 Safar 1399 corresponds to the Gregorian date Tuesday, 9 January 1979. This date lies in the second month of the Hijri year 1399 AH, which is Safar of 1399 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1399/02/11 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 9 January 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 11 Safar 1399 AH to its equivalent Gregorian date.
فَٱسْتَجَبْنَا لَهُۥ وَوَهَبْنَا لَهُۥ يَحْيَىٰ وَأَصْلَحْنَا لَهُۥ زَوْجَهُۥٓ ۚ إِنَّهُمْ كَانُوا۟ يُسَٰرِعُونَ فِى ٱلْخَيْرَٰتِ وَيَدْعُونَنَا رَغَبًۭا وَرَهَبًۭا ۖ وَكَانُوا۟ لَنَا خَٰشِعِينَ
Then We heard his prayer, and bestowed upon him John, and adjusted his wife (to bear a child) for him. Lo! they used to vie one with the other in good deeds, and they cried unto Us in longing and in fear, and were submissive unto Us.
Surah Al-Anbiyaa(21:90)
Sahih al-Bukhari
Companions of the Prophet
Chapter: The merits of Al-Hasan and Al-Husain رضي الله عنهما
Narrated Al-Bara:
I saw the Prophet (ﷺ) carrying Al-Hasan on his shoulder an saying, "O Allah! I love him, so please love him."
Sahih al-Bukhari 3749