Well, the Hijri date 20 Jumada Al Oula 1266 corresponds to the Gregorian date Tuesday, 2 April 1850. This date lies in the fifth month of the Hijri year 1266 AH, which is Jumada Al-Awwal of 1266 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1266/05/20 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 2 April 1850 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Jumada Al Oula 1266 AH to its equivalent Gregorian date.
وَٱلَّذِىٓ أَوْحَيْنَآ إِلَيْكَ مِنَ ٱلْكِتَٰبِ هُوَ ٱلْحَقُّ مُصَدِّقًۭا لِّمَا بَيْنَ يَدَيْهِ ۗ إِنَّ ٱللَّهَ بِعِبَادِهِۦ لَخَبِيرٌۢ بَصِيرٌۭ
As for that which We inspire in thee of the Scripture, it is the Truth confirming that which was (revealed) before it. Lo! Allah is indeed Observer, Seer of His slaves.
Surah Faatir(35:31)
