Well, the Hijri date 13 Ramadan 1477 corresponds to the Gregorian date Saturday, 10 April 2055. This date lies in the ninth month of the Hijri year 1477 AH, which is Ramadan of 1477 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1477/09/13 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 10 April 2055 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Ramadan 1477 AH to its equivalent Gregorian date.
لَا جَرَمَ أَنَّهُمْ فِى ٱلْءَاخِرَةِ هُمُ ٱلْخَٰسِرُونَ
Assuredly in the Hereafter they are the losers.
Surah An-Nahl(16:109)
Sahih al-Bukhari
Hajj (Pilgrimage)
Chapter: To give religious verdicts while riding an animal
Narrated `Abdullah bin `Amr:
Allah's Messenger (ﷺ) stopped (for a while near the Jimar at Mina) during his last Hajj and the people started asking him questions. A man said, "Ignorantly I got my head shaved before slaughtering." The Prophet replied, "Slaughter (now) and there is no harm in it." Another man said, "Unknowingly I slaughtered the Hadi before doing the Rami." The Prophet (ﷺ) said, "Do Rami now and there is no harm in it." So, on that day, when the Prophet (ﷺ) was asked about anything (about the ceremonies of Hajj) done before or after (its stated time) his reply was, "Do it (now) and there is no harm."
Sahih al-Bukhari 1736