Well, the Hijri date 14 Safar 1421 corresponds to the Gregorian date Thursday, 18 May 2000. This date lies in the second month of the Hijri year 1421 AH, which is Safar of 1421 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1421/02/14 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 18 May 2000 to its equivalent Arabic date.
The following is the conversion of the Arabic date 14 Safar 1421 AH to its equivalent Gregorian date.
وَجَعَلَهَا كَلِمَةًۢ بَاقِيَةًۭ فِى عَقِبِهِۦ لَعَلَّهُمْ يَرْجِعُونَ
And he made it a word enduring among his seed, that haply they might return.
Surah Az-Zukhruf(43:28)
Sahih al-Bukhari
Good Manners and Form (Al-Adab)
Chapter: Whoever does not consider as Kafir the person who says that...
Narrated Jabir bin `Abdullah:
Mu`adh bin Jabal used to pray with the Prophet (ﷺ) and then go to lead his people in prayer. Once he led the people in prayer and recited Surat-al-Baqara. A man left (the row of the praying people) and offered (light) prayer (separately) and went away. When Mu`adh came to know about it, he said. "He (that man) is a hypocrite." Later that man heard what Mu`adh said about him, so he came to the Prophet and said, "O Allah's Messenger (ﷺ)! We are people who work with our own hands and irrigate (our farms) with our camels. Last night Mu`adh led us in the (night) prayer and he recited Sura-al-Baqara, so I offered my prayer separately, and because of that, he accused me of being a hypocrite." The Prophet called Mu`adh and said thrice, "O Mu`adh! You are putting the people to trials? Recite 'Washshamsi wad-uhaha' (91) or'Sabbih isma Rabbi ka-l-A'la' (87) or the like."
Sahih al-Bukhari 6106