Well, the Hijri date 13 Ramadan 1418 corresponds to the Gregorian date Sunday, 11 January 1998. This date lies in the ninth month of the Hijri year 1418 AH, which is Ramadan of 1418 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1418/09/13 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 11 January 1998 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Ramadan 1418 AH to its equivalent Gregorian date.
قَالَ سَـَٔاوِىٓ إِلَىٰ جَبَلٍۢ يَعْصِمُنِى مِنَ ٱلْمَآءِ ۚ قَالَ لَا عَاصِمَ ٱلْيَوْمَ مِنْ أَمْرِ ٱللَّهِ إِلَّا مَن رَّحِمَ ۚ وَحَالَ بَيْنَهُمَا ٱلْمَوْجُ فَكَانَ مِنَ ٱلْمُغْرَقِينَ
He said: I shall betake me to some mountain that will save me from the water. (Noah) said: This day there is none that saveth from the commandment of Allah save him on whom He hath had mercy. And the wave came in between them, so he was among the drowned.
Surah Hud(11:43)