Well, the Hijri date 21 Ramadan 1389 corresponds to the Gregorian date Sunday, 30 November 1969. This date lies in the ninth month of the Hijri year 1389 AH, which is Ramadan of 1389 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1389/09/21 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 30 November 1969 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Ramadan 1389 AH to its equivalent Gregorian date.
وَيَجْعَلُونَ لِمَا لَا يَعْلَمُونَ نَصِيبًۭا مِّمَّا رَزَقْنَٰهُمْ ۗ تَٱللَّهِ لَتُسْـَٔلُنَّ عَمَّا كُنتُمْ تَفْتَرُونَ
And they assign a portion of that which We have given them unto what they know not. By Allah! but ye will indeed be asked concerning (all) that ye used to invent.
Surah An-Nahl(16:56)
Sahih al-Bukhari
Manumission of Slaves
Chapter: Manumission of a Mushrik
Narrated Hisham:
My father told me that Hakim bin Hizam manumitted one-hundred slaves in the Pre-Islamic period of ignorance and slaughtered one-hundred camels (and distributed them in charity). When he embraced Islam he again slaughtered one-hundred camels and manumitted one-hundred slaves. Hakim said, "I asked Allah's Messenger (ﷺ), 'O Allah's Messenger (ﷺ)! What do you think about some good deeds I used to practice in the Pre-Islamic period of ignorance regarding them as deeds of righteousness?' Allah's Apostle said, "You have embraced Islam along with all those good deeds you did."
Sahih al-Bukhari 2538