Well, the Hijri date 26 Rabi Al Thani 1409 corresponds to the Gregorian date Monday, 5 December 1988. This date lies in the fourth month of the Hijri year 1409 AH, which is Rabi Al-Thani of 1409 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1409/04/26 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 5 December 1988 to its equivalent Arabic date.
The following is the conversion of the Arabic date 26 Rabi Al Thani 1409 AH to its equivalent Gregorian date.
إِنَّآ أَنزَلْنَا ٱلتَّوْرَىٰةَ فِيهَا هُدًۭى وَنُورٌۭ ۚ يَحْكُمُ بِهَا ٱلنَّبِيُّونَ ٱلَّذِينَ أَسْلَمُوا۟ لِلَّذِينَ هَادُوا۟ وَٱلرَّبَّٰنِيُّونَ وَٱلْأَحْبَارُ بِمَا ٱسْتُحْفِظُوا۟ مِن كِتَٰبِ ٱللَّهِ وَكَانُوا۟ عَلَيْهِ شُهَدَآءَ ۚ فَلَا تَخْشَوُا۟ ٱلنَّاسَ وَٱخْشَوْنِ وَلَا تَشْتَرُوا۟ بِـَٔايَٰتِى ثَمَنًۭا قَلِيلًۭا ۚ وَمَن لَّمْ يَحْكُم بِمَآ أَنزَلَ ٱللَّهُ فَأُو۟لَٰٓئِكَ هُمُ ٱلْكَٰفِرُونَ
Lo! We did reveal the Torah, wherein is guidance and a light, by which the prophets who surrendered (unto Allah) judged the Jews, and the rabbis and the priests (judged) by such of Allah's Scripture as they were bidden to observe, and thereunto were they witnesses. So fear not mankind, but fear Me. And My revelations for a little gain. Whoso judgeth not by that which Allah hath revealed: such are disbelievers.
Surah Al-Maaida(5:44)