Well, the Hijri date 11 Muharram 1490 corresponds to the Gregorian date Saturday, 26 March 2067. This date lies in the first month of the Hijri year 1490 AH, which is Muharram of 1490 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1490/01/11 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 26 March 2067 to its equivalent Arabic date.
The following is the conversion of the Arabic date 11 Muharram 1490 AH to its equivalent Gregorian date.
قَالَ ٱدْخُلُوا۟ فِىٓ أُمَمٍۢ قَدْ خَلَتْ مِن قَبْلِكُم مِّنَ ٱلْجِنِّ وَٱلْإِنسِ فِى ٱلنَّارِ ۖ كُلَّمَا دَخَلَتْ أُمَّةٌۭ لَّعَنَتْ أُخْتَهَا ۖ حَتَّىٰٓ إِذَا ٱدَّارَكُوا۟ فِيهَا جَمِيعًۭا قَالَتْ أُخْرَىٰهُمْ لِأُولَىٰهُمْ رَبَّنَا هَٰٓؤُلَآءِ أَضَلُّونَا فَـَٔاتِهِمْ عَذَابًۭا ضِعْفًۭا مِّنَ ٱلنَّارِ ۖ قَالَ لِكُلٍّۢ ضِعْفٌۭ وَلَٰكِن لَّا تَعْلَمُونَ
He saith: Enter into the Fire among nations of the jinn and humankind who passed away before you. Every time a nation entereth, it curseth its sister (nation) till, when they have all been made to follow one another thither, the last of them saith unto the first of them: Our Lord! These led us astray, so give them double torment of the Fire. He saith: For each one there is double (torment), but ye know not.
Surah Al-A'raaf(7:38)