Well, the Hijri date 21 Dhul Qidah 1403 corresponds to the Gregorian date Monday, 29 August 1983. This date lies in the eleventh month of the Hijri year 1403 AH, which is Dhu Al-Qidah of 1403 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1403/11/21 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 29 August 1983 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Dhul Qidah 1403 AH to its equivalent Gregorian date.
وَٱللَّهُ أَخْرَجَكُم مِّنۢ بُطُونِ أُمَّهَٰتِكُمْ لَا تَعْلَمُونَ شَيْـًۭٔا وَجَعَلَ لَكُمُ ٱلسَّمْعَ وَٱلْأَبْصَٰرَ وَٱلْأَفْـِٔدَةَ ۙ لَعَلَّكُمْ تَشْكُرُونَ
And Allah brought you forth from the wombs of your mothers knowing nothing, and gave you hearing and sight and hearts that haply ye might give thanks.
Surah An-Nahl(16:78)
Sahih al-Bukhari
Praying at Night in Ramadaan (Taraweeh)
Chapter: The superiority of Nawafil at night in Ramadan
Narrated Abu Salama bin `Abdur Rahman:
that he asked `Aisha "How was the prayer of Allah's Messenger (ﷺ) in Ramadan?" She replied, "He did not pray more than eleven rak`at in Ramadan or in any other month. He used to pray four rak`at ---- let alone their beauty and length----and then he would pray four ----let alone their beauty and length ---- and then he would pray three rak`at (witr)." She added, "I asked, 'O Allah's Messenger (ﷺ)! Do you sleep before praying the witr?' He replied, 'O `Aisha! My eyes sleep but my heart does not sleep."
Sahih al-Bukhari 2013