Well, the Hijri date 24 Muharram 1440 corresponds to the Gregorian date Thursday, 4 October 2018. This date lies in the first month of the Hijri year 1440 AH, which is Muharram of 1440 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1440/01/24 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 4 October 2018 to its equivalent Arabic date.
The following is the conversion of the Arabic date 24 Muharram 1440 AH to its equivalent Gregorian date.
فَعَقَرُوهَا فَقَالَ تَمَتَّعُوا۟ فِى دَارِكُمْ ثَلَٰثَةَ أَيَّامٍۢ ۖ ذَٰلِكَ وَعْدٌ غَيْرُ مَكْذُوبٍۢ
But they hamstrung her, and then he said: Enjoy life in your dwelling-place three days! This is a threat that will not be belied.
Surah Hud(11:65)
Sahih al-Bukhari
Oaths and Vows
Chapter: If a person gives his property in charity because of a vow and as an expiation for sins
Narrated Ka`b bin Malik:
In the last part of his narration about the three who remained behind (from the battle of Tabuk). (I said) "As a proof of my true repentance (for not joining the Holy battle of Tabuk), I shall give up all my property for the sake of Allah and His Apostle (as an expiation for that sin)." The Prophet (ﷺ) said (to me), "Keep some of your wealth, for that is better for you."
Sahih al-Bukhari 6690