Well, the Hijri date 13 Ramadan 1604 corresponds to the Gregorian date Sunday, 28 June 2178. This date lies in the ninth month of the Hijri year 1604 AH, which is Ramadan of 1604 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1604/09/13 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 28 June 2178 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Ramadan 1604 AH to its equivalent Gregorian date.
أَمَّن يُجِيبُ ٱلْمُضْطَرَّ إِذَا دَعَاهُ وَيَكْشِفُ ٱلسُّوٓءَ وَيَجْعَلُكُمْ خُلَفَآءَ ٱلْأَرْضِ ۗ أَءِلَٰهٌۭ مَّعَ ٱللَّهِ ۚ قَلِيلًۭا مَّا تَذَكَّرُونَ
Is not He (best) Who answereth the wronged one when he crieth unto Him and removeth the evil, and hath made you viceroys of the earth? Is there any Allah beside Allah? Little do they reflect!
Surah An-Naml(27:62)