Well, the Hijri date 1 Rabi Al Thani 1412 corresponds to the Gregorian date Tuesday, 8 October 1991. This date lies in the fourth month of the Hijri year 1412 AH, which is Rabi Al-Thani of 1412 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1412/04/01 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 October 1991 to its equivalent Arabic date.
The following is the conversion of the Arabic date 1 Rabi Al Thani 1412 AH to its equivalent Gregorian date.
۞ وَأَوْحَيْنَآ إِلَىٰ مُوسَىٰٓ أَنْ أَلْقِ عَصَاكَ ۖ فَإِذَا هِىَ تَلْقَفُ مَا يَأْفِكُونَ
And We inspired Moses (saying): Throw thy staff! And lo! it swallowed up their lying show.
Surah Al-A'raaf(7:117)
Sahih al-Bukhari
Beginning of Creation
Chapter: The characteristics of the gates of Paradise
Narrated Sahl bin Sa`d:
The Prophet (ﷺ) said, "Paradise has eight gates, and one of them is called Ar-Raiyan through which none will enter but those who observe fasting."
Sahih al-Bukhari 3257