Well, the Hijri date 26 Dhul Hijjah 1504 corresponds to the Gregorian date Monday, 29 September 2081. This date lies in the twelfth month of the Hijri year 1504 AH, which is Dhu Al-Hijjah of 1504 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1504/12/26 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 29 September 2081 to its equivalent Arabic date.
The following is the conversion of the Arabic date 26 Dhul Hijjah 1504 AH to its equivalent Gregorian date.
وَلَمَّا جَآءَهُمْ كِتَٰبٌۭ مِّنْ عِندِ ٱللَّهِ مُصَدِّقٌۭ لِّمَا مَعَهُمْ وَكَانُوا۟ مِن قَبْلُ يَسْتَفْتِحُونَ عَلَى ٱلَّذِينَ كَفَرُوا۟ فَلَمَّا جَآءَهُم مَّا عَرَفُوا۟ كَفَرُوا۟ بِهِۦ ۚ فَلَعْنَةُ ٱللَّهِ عَلَى ٱلْكَٰفِرِينَ
And when there cometh unto them a scripture from Allah, confirming that in their possession - though before that they were asking for a signal triumph over those who disbelieved - and when there cometh unto them that which they know (to be the truth) they disbelieve therein. The curse of Allah is on disbelievers.
Surah Al-Baqara(2:89)