Well, the Hijri date 18 Muharram 1366 corresponds to the Gregorian date Wednesday, 11 December 1946. This date lies in the first month of the Hijri year 1366 AH, which is Muharram of 1366 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1366/01/18 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 December 1946 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Muharram 1366 AH to its equivalent Gregorian date.
قَالُوا۟ يَٰوَيْلَنَآ إِنَّا كُنَّا ظَٰلِمِينَ
They cried: Alas for us! we were wrong-doers.
Surah Al-Anbiyaa(21:14)
Sahih al-Bukhari
Oaths and Vows
Chapter: If somebody dies without fulfiling a vow
Narrated Ibn `Abbas:
A man came to the Prophet (ﷺ) and said to him, "My sister vowed to perform the Hajj, but she died (before fulfilling it)." The Prophet (ﷺ) said, "Would you not have paid her debts if she had any?" The man said, "Yes." The Prophet (ﷺ) said, "So pay Allah's Rights, as He is more entitled to receive His rights."
Sahih al-Bukhari 6699