Well, the Hijri date 9 Rajab 1528 corresponds to the Gregorian date Thursday, 31 July 2104. This date lies in the seventh month of the Hijri year 1528 AH, which is Rajab of 1528 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1528/07/09 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 31 July 2104 to its equivalent Arabic date.
The following is the conversion of the Arabic date 9 Rajab 1528 AH to its equivalent Gregorian date.
وَيَقُولُونَ طَاعَةٌۭ فَإِذَا بَرَزُوا۟ مِنْ عِندِكَ بَيَّتَ طَآئِفَةٌۭ مِّنْهُمْ غَيْرَ ٱلَّذِى تَقُولُ ۖ وَٱللَّهُ يَكْتُبُ مَا يُبَيِّتُونَ ۖ فَأَعْرِضْ عَنْهُمْ وَتَوَكَّلْ عَلَى ٱللَّهِ ۚ وَكَفَىٰ بِٱللَّهِ وَكِيلًا
And they say: (It is) obedience; but when they have gone forth from thee a party of them spend the night in planning other than what thou sayest. Allah recordeth what they plan by night. So oppose them and put thy trust in Allah. Allah is sufficient as Trustee.
Surah An-Nisaa(4:81)