Well, the Hijri date 25 Dhul Qidah 1398 corresponds to the Gregorian date Friday, 27 October 1978. This date lies in the eleventh month of the Hijri year 1398 AH, which is Dhu Al-Qidah of 1398 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1398/11/25 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 27 October 1978 to its equivalent Arabic date.
The following is the conversion of the Arabic date 25 Dhul Qidah 1398 AH to its equivalent Gregorian date.
ٱسْتِكْبَارًۭا فِى ٱلْأَرْضِ وَمَكْرَ ٱلسَّيِّئِ ۚ وَلَا يَحِيقُ ٱلْمَكْرُ ٱلسَّيِّئُ إِلَّا بِأَهْلِهِۦ ۚ فَهَلْ يَنظُرُونَ إِلَّا سُنَّتَ ٱلْأَوَّلِينَ ۚ فَلَن تَجِدَ لِسُنَّتِ ٱللَّهِ تَبْدِيلًۭا ۖ وَلَن تَجِدَ لِسُنَّتِ ٱللَّهِ تَحْوِيلًا
(Shown in their) behaving arrogantly in the land and plotting evil; and the evil plot encloseth but the men who make it. Then, can they expect aught save the treatment of the folk of old? Thou wilt not find for Allah's way of treatment any substitute, nor wilt thou find for Allah's way of treatment aught of power to change.
Surah Faatir(35:43)