Well, the Hijri date 12 Jumada Al Oula 1398 corresponds to the Gregorian date Wednesday, 19 April 1978. This date lies in the fifth month of the Hijri year 1398 AH, which is Jumada Al-Awwal of 1398 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1398/05/12 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 19 April 1978 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Jumada Al Oula 1398 AH to its equivalent Gregorian date.
ذُرِّيَّةَ مَنْ حَمَلْنَا مَعَ نُوحٍ ۚ إِنَّهُۥ كَانَ عَبْدًۭا شَكُورًۭا
(They were) the seed of those whom We carried (in the ship) along with Noah. Lo! he was a grateful slave.
Surah Al-Israa(17:3)