Well, the Hijri date 13 Shawwal 1405 corresponds to the Gregorian date Monday, 1 July 1985. This date lies in the tenth month of the Hijri year 1405 AH, which is Shawwal of 1405 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1405/10/13 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 1 July 1985 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Shawwal 1405 AH to its equivalent Gregorian date.
إِلَّا مَوْتَتَنَا ٱلْأُولَىٰ وَمَا نَحْنُ بِمُعَذَّبِينَ
Saving our former death, and are we not to be punished?
Surah As-Saaffaat(37:59)
Sahih al-Bukhari
Oaths and Vows
Chapter: If someone does something against his oath due to forgetfulness
Narrated Jundub:
I witnessed the Prophet (ﷺ) offering the `Id prayer (and after finishing it) he delivered a sermon and said, "Whoever has slaughtered his sacrifice (before the prayer) should make up for it (i.e. slaughter another animal) and whoever has not slaughtered his sacrifice yet, should slaughter it by mentioning Allah's Name over it."
Sahih al-Bukhari 6674