Well, the Hijri date 18 Jumada Al Akhira 1421 corresponds to the Gregorian date Saturday, 16 September 2000. This date lies in the sixth month of the Hijri year 1421 AH, which is Jumada Al-Thani of 1421 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1421/06/18 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 16 September 2000 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Jumada Al Akhira 1421 AH to its equivalent Gregorian date.
وَٱلْأَرْضَ بَعْدَ ذَٰلِكَ دَحَىٰهَآ
And after that He spread the earth,
Surah An-Naazi'aat(79:30)
Sahih al-Bukhari
Witnesses
Chapter: How to swear?
Narrated Talha bin 'Ubaidullah:
A man came to Allah's Messenger (ﷺ) asking him about Islam, Allah's Messenger (ﷺ) said, "You have to offer five compulsory prayers in a day and a night (24 hours)." The man asked, "Is there any more compulsory prayers for me?" Allah's Messenger (ﷺ) said, "No, unless you like to offer Nawafil (i.e. optional prayers)." Allah's Messenger (ﷺ) then added, "You have to observe fasts during the month of Ramadan." The man said, "Am I to fast any other days?' Allah's Messenger (ﷺ) said, "No, unless you wish to observe the optional fast voluntarily." Then Allah's Messenger (ﷺ) told him about the compulsory Zakat. The man asked, "Do I have to give anything besides?" Allah's Messenger (ﷺ) said, "No, unless you wish to give in charity voluntarily." So, the man departed saying, "By Allah I will neither do more nor less than that." Allah's Messenger (ﷺ) said, "If he has said the truth he will be successful."
Sahih al-Bukhari 2678