Well, the Hijri date 21 Dhul Qidah 1417 corresponds to the Gregorian date Sunday, 30 March 1997. This date lies in the eleventh month of the Hijri year 1417 AH, which is Dhu Al-Qidah of 1417 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1417/11/21 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 30 March 1997 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Dhul Qidah 1417 AH to its equivalent Gregorian date.
إِنَّ ٱلَّذِينَ كَفَرُوا۟ بَعْدَ إِيمَٰنِهِمْ ثُمَّ ٱزْدَادُوا۟ كُفْرًۭا لَّن تُقْبَلَ تَوْبَتُهُمْ وَأُو۟لَٰٓئِكَ هُمُ ٱلضَّآلُّونَ
Lo! those who disbelieve after their (profession of) belief, and afterward grow violent in disbelief: their repentance will not be accepted. And such are those who are astray.
Surah Aal-i-Imraan(3:90)
Sahih al-Bukhari
Holding Fast to the Qur'an and Sunnah
Chapter: Following the Sunna of the Prophet (saws)
Narrated Hudhaifa:
Allah's Messenger (ﷺ) said to us, "Honesty descended from the Heavens and settled in the roots of the hearts of men (faithful believers), and then the Qur'an was revealed and the people read the Qur'an, (and learnt it from it) and also learnt it from the Sunna." Both Qur'an and Sunna strengthened their (the faithful believers') honesty. (See Hadith No. 208)
Sahih al-Bukhari 7276