Well, the Hijri date 16 Rabi Al Thani 1188 corresponds to the Gregorian date Saturday, 25 June 1774. This date lies in the fourth month of the Hijri year 1188 AH, which is Rabi Al-Thani of 1188 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1188/04/16 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 25 June 1774 to its equivalent Arabic date.
The following is the conversion of the Arabic date 16 Rabi Al Thani 1188 AH to its equivalent Gregorian date.
إِذْ قَالَتِ ٱمْرَأَتُ عِمْرَٰنَ رَبِّ إِنِّى نَذَرْتُ لَكَ مَا فِى بَطْنِى مُحَرَّرًۭا فَتَقَبَّلْ مِنِّىٓ ۖ إِنَّكَ أَنتَ ٱلسَّمِيعُ ٱلْعَلِيمُ
(Remember) when the wife of 'Imran said: My Lord! I have vowed unto Thee that which is in my belly as a consecrated (offering). Accept it from me. Lo! Thou, only Thou, art the Hearer, the Knower!
Surah Aal-i-Imraan(3:35)
