Well, the Hijri date 13 Ramadan 1492 corresponds to the Gregorian date Monday, 28 October 2069. This date lies in the ninth month of the Hijri year 1492 AH, which is Ramadan of 1492 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1492/09/13 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 October 2069 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Ramadan 1492 AH to its equivalent Gregorian date.
فَإِنَّمَا يَسَّرْنَٰهُ بِلِسَانِكَ لِتُبَشِّرَ بِهِ ٱلْمُتَّقِينَ وَتُنذِرَ بِهِۦ قَوْمًۭا لُّدًّۭا
And We make (this Scripture) easy in thy tongue, (O Muhammad) only that thou mayst bear good tidings therewith unto those who ward off (evil), and warn therewith the froward folk.
Surah Maryam(19:97)
Sahih al-Bukhari
Virtues and Merits of the Prophet (pbuh) and his Companions
Chapter
Narrated Anas bin Malik:
Allah's Messenger (ﷺ) reached Khaibar in the early morning and the people of Khaibar came out with their spades, and when they saw the Prophet (ﷺ) they said, "Muhammad and his army!" and returned hurriedly to take refuge in the fort. The Prophet (ﷺ) raised his hands and said, "Allah is Greater! Khaibar is ruined ! If we approach a nation, then miserable is the morning of those who are warned."
Sahih al-Bukhari 3647