Well, the Hijri date 3 Muharram 1437 corresponds to the Gregorian date Friday, 16 October 2015. This date lies in the first month of the Hijri year 1437 AH, which is Muharram of 1437 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1437/01/03 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 16 October 2015 to its equivalent Arabic date.
The following is the conversion of the Arabic date 3 Muharram 1437 AH to its equivalent Gregorian date.
إِنَّمَا كَانَ قَوْلَ ٱلْمُؤْمِنِينَ إِذَا دُعُوٓا۟ إِلَى ٱللَّهِ وَرَسُولِهِۦ لِيَحْكُمَ بَيْنَهُمْ أَن يَقُولُوا۟ سَمِعْنَا وَأَطَعْنَا ۚ وَأُو۟لَٰٓئِكَ هُمُ ٱلْمُفْلِحُونَ
The saying of (all true) believers when they appeal unto Allah and His messenger to judge between them is only that they say: We hear and we obey. And such are the successful.
Surah An-Noor(24:51)
Sahih al-Bukhari
Retiring to a Mosque for Remembrance of Allah (I'tikaf)
Chapter: I'tikaf in the middle ten days of Ramadan
Narrated Abu Huraira:
The Prophet (ﷺ) used to perform I`tikaf every year in the month of Ramadan for ten days, and when it was the year of his death, he stayed in I`tikaf for twenty days.
Sahih al-Bukhari 2044