Well, the Hijri date 26 Shaban 1405 corresponds to the Gregorian date Thursday, 16 May 1985. This date lies in the eighth month of the Hijri year 1405 AH, which is Shaban of 1405 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1405/08/26 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 16 May 1985 to its equivalent Arabic date.
The following is the conversion of the Arabic date 26 Shaban 1405 AH to its equivalent Gregorian date.
يَحْسَبُونَ ٱلْأَحْزَابَ لَمْ يَذْهَبُوا۟ ۖ وَإِن يَأْتِ ٱلْأَحْزَابُ يَوَدُّوا۟ لَوْ أَنَّهُم بَادُونَ فِى ٱلْأَعْرَابِ يَسْـَٔلُونَ عَنْ أَنۢبَآئِكُمْ ۖ وَلَوْ كَانُوا۟ فِيكُم مَّا قَٰتَلُوٓا۟ إِلَّا قَلِيلًۭا
They hold that the clans have not retired (for good); and if the clans should advance (again), they would fain be in the desert with the wandering Arabs, asking for the news of you; and if they were among you, they would not give battle, save a little.
Surah Al-Ahzaab(33:20)