Well, the Hijri date 12 Shawwal 1439 corresponds to the Gregorian date Tuesday, 26 June 2018. This date lies in the tenth month of the Hijri year 1439 AH, which is Shawwal of 1439 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1439/10/12 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 26 June 2018 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Shawwal 1439 AH to its equivalent Gregorian date.
قُل لَّوْ كَانَ ٱلْبَحْرُ مِدَادًۭا لِّكَلِمَٰتِ رَبِّى لَنَفِدَ ٱلْبَحْرُ قَبْلَ أَن تَنفَدَ كَلِمَٰتُ رَبِّى وَلَوْ جِئْنَا بِمِثْلِهِۦ مَدَدًۭا
Say: Though the sea became ink for the Words of my Lord, verily the sea would be used up before the words of my Lord were exhausted, even though We brought the like thereof to help.
Surah Al-Kahf(18:109)
Sahih al-Bukhari
Prophets
Chapter: The creation of Adam and his offspring
Narrated Abu Huraira:
The Prophet (ﷺ) said, "Allah created Adam, making him 60 cubits tall. When He created him, He said to him, "Go and greet that group of angels, and listen to their reply, for it will be your greeting (salutation) and the greeting (salutations of your offspring." So, Adam said (to the angels), As-Salamu Alaikum (i.e. Peace be upon you). The angels said, "As-salamu Alaika wa Rahmatu-l-lahi" (i.e. Peace and Allah's Mercy be upon you). Thus the angels added to Adam's salutation the expression, 'Wa Rahmatu-l-lahi,' Any person who will enter Paradise will resemble Adam (in appearance and figure). People have been decreasing in stature since Adam's creation.
Sahih al-Bukhari 3326
