Well, the Hijri date 4 Shaban 1489 corresponds to the Gregorian date Saturday, 23 October 2066. This date lies in the eighth month of the Hijri year 1489 AH, which is Shaban of 1489 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1489/08/04 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 23 October 2066 to its equivalent Arabic date.
The following is the conversion of the Arabic date 4 Shaban 1489 AH to its equivalent Gregorian date.
يَكَادُ ٱلْبَرْقُ يَخْطَفُ أَبْصَٰرَهُمْ ۖ كُلَّمَآ أَضَآءَ لَهُم مَّشَوْا۟ فِيهِ وَإِذَآ أَظْلَمَ عَلَيْهِمْ قَامُوا۟ ۚ وَلَوْ شَآءَ ٱللَّهُ لَذَهَبَ بِسَمْعِهِمْ وَأَبْصَٰرِهِمْ ۚ إِنَّ ٱللَّهَ عَلَىٰ كُلِّ شَىْءٍۢ قَدِيرٌۭ
The lightning almost snatcheth away their sight from them. As often as it flasheth forth for them they walk therein, and when it darkeneth against them they stand still. If Allah willed, He could destroy their hearing and their sight. Lo! Allah is able to do all things.
Surah Al-Baqara(2:20)
Sahih al-Bukhari
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
Chapter: The letter of the Prophet (saws) to Kisra (Khosrau) and Qaiser (Caesar)
Narrated Abu Bakra:
During the days (of the battle) of Al-Jamal, Allah benefited me with a word I had heard from Allah's Apostle after I had been about to join the Companions of Al-Jamal (i.e. the camel) and fight along with them. When Allah's Messenger (ﷺ) was informed that the Persians had crowned the daughter of Khosrau as their ruler, he said, "Such people as ruled by a lady will never be successful."
Sahih al-Bukhari 4425