Well, the Hijri date 11 Shaban 1387 corresponds to the Gregorian date Monday, 13 November 1967. This date lies in the eighth month of the Hijri year 1387 AH, which is Shaban of 1387 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1387/08/11 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 13 November 1967 to its equivalent Arabic date.
The following is the conversion of the Arabic date 11 Shaban 1387 AH to its equivalent Gregorian date.
أَمْ أَنزَلْنَا عَلَيْهِمْ سُلْطَٰنًۭا فَهُوَ يَتَكَلَّمُ بِمَا كَانُوا۟ بِهِۦ يُشْرِكُونَ
Or have We revealed unto them any warrant which speaketh of that which they associate with Him?
Surah Ar-Room(30:35)