Well, the Hijri date 12 Rabi Al Awwal 1388 corresponds to the Gregorian date Saturday, 8 June 1968. This date lies in the third month of the Hijri year 1388 AH, which is Rabi Al-Awwal of 1388 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1388/03/12 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 8 June 1968 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Rabi Al Awwal 1388 AH to its equivalent Gregorian date.
ذَٰلِكُم بِأَنَّهُۥٓ إِذَا دُعِىَ ٱللَّهُ وَحْدَهُۥ كَفَرْتُمْ ۖ وَإِن يُشْرَكْ بِهِۦ تُؤْمِنُوا۟ ۚ فَٱلْحُكْمُ لِلَّهِ ٱلْعَلِىِّ ٱلْكَبِيرِ
(It is said unto them): This is (your plight) because, when Allah only was invoked, ye disbelieved, but when some partner was ascribed to Him ye were believing. But the command belongeth only to Allah, the Sublime, the Majestic.
Surah Ghafir(40:12)