Well, the Hijri date 9 Dhul Qidah 1408 corresponds to the Gregorian date Thursday, 23 June 1988. This date lies in the eleventh month of the Hijri year 1408 AH, which is Dhu Al-Qidah of 1408 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1408/11/09 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 23 June 1988 to its equivalent Arabic date.
The following is the conversion of the Arabic date 9 Dhul Qidah 1408 AH to its equivalent Gregorian date.
وَمَنْ أَضَلُّ مِمَّن يَدْعُوا۟ مِن دُونِ ٱللَّهِ مَن لَّا يَسْتَجِيبُ لَهُۥٓ إِلَىٰ يَوْمِ ٱلْقِيَٰمَةِ وَهُمْ عَن دُعَآئِهِمْ غَٰفِلُونَ
And who is further astray than those who, instead of Allah, pray unto such as hear not their prayer until the Day of Resurrection, and are unconscious of their prayer,
Surah Al-Ahqaf(46:5)
Sahih al-Bukhari
Invocations
Chapter: "... And invoke Allah for them ..."
Narrated Ibn Abi `Aufa:
Whenever a man brought his alms to the Prophet, the Prophet (ﷺ) would say, "O Allah! Bestow Your Blessing upon the family of so-and-so." When my father came to him (with his alms), he said, "O Allah! Bestow Your Blessings upon the family of Abi `Aufa."
Sahih al-Bukhari 6332