Well, the Hijri date 25 Rabi Al Thani 1340 corresponds to the Gregorian date Saturday, 24 December 1921. This date lies in the fourth month of the Hijri year 1340 AH, which is Rabi Al-Thani of 1340 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1340/04/25 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 24 December 1921 to its equivalent Arabic date.
The following is the conversion of the Arabic date 25 Rabi Al Thani 1340 AH to its equivalent Gregorian date.
قُلْ يَٰٓأَيُّهَا ٱلنَّاسُ إِن كُنتُمْ فِى شَكٍّۢ مِّن دِينِى فَلَآ أَعْبُدُ ٱلَّذِينَ تَعْبُدُونَ مِن دُونِ ٱللَّهِ وَلَٰكِنْ أَعْبُدُ ٱللَّهَ ٱلَّذِى يَتَوَفَّىٰكُمْ ۖ وَأُمِرْتُ أَنْ أَكُونَ مِنَ ٱلْمُؤْمِنِينَ
Say (O Muhammad): O mankind! If ye are in doubt of my religion, then (know that) I worship not those whom ye worship instead of Allah, but I worship Allah Who causeth you to die, and I have been commanded to be of the believers.
Surah Yunus(10:104)