Well, the Hijri date 12 Ramadan 1421 corresponds to the Gregorian date Friday, 8 December 2000. This date lies in the ninth month of the Hijri year 1421 AH, which is Ramadan of 1421 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1421/09/12 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 8 December 2000 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Ramadan 1421 AH to its equivalent Gregorian date.
مَا يُجَٰدِلُ فِىٓ ءَايَٰتِ ٱللَّهِ إِلَّا ٱلَّذِينَ كَفَرُوا۟ فَلَا يَغْرُرْكَ تَقَلُّبُهُمْ فِى ٱلْبِلَٰدِ
None argue concerning the revelations of Allah save those who disbelieve, so let not their turn of fortune in the land deceive thee (O Muhammad).
Surah Ghafir(40:4)
Sahih al-Bukhari
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
Chapter: The sickness of the Prophet (saws) and his death
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`Aisha added, "I argued with Allah's Messenger (ﷺ) repeatedly about that matter (i.e. his order that Abu Bakr should lead the people in prayer in his place when he was ill), and what made me argue so much, was, that it never occurred to my mind that after the Prophet, the people would ever love a man who had taken his place, and I felt that anybody standing in his place, would be a bad omen to the people, so I wanted Allah's Messenger (ﷺ) to give up the idea of choosing Abu Bakr (to lead the people in prayer).
Sahih al-Bukhari 4445