Well, the Hijri date 5 Dhul Hijjah 1439 corresponds to the Gregorian date Thursday, 16 August 2018. This date lies in the twelfth month of the Hijri year 1439 AH, which is Dhu Al-Hijjah of 1439 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1439/12/05 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 August 2018 to its equivalent Arabic date.
The following is the conversion of the Arabic date 5 Dhul Hijjah 1439 AH to its equivalent Gregorian date.
ذَٰلِكَ ٱلْيَوْمُ ٱلْحَقُّ ۖ فَمَن شَآءَ ٱتَّخَذَ إِلَىٰ رَبِّهِۦ مَـَٔابًا
That is the True Day. So whoso will should seek recourse unto his Lord.
Surah An-Naba(78:39)
Sahih al-Bukhari
Eclipses
Chapter: The saying of Amma ba'du during the Khutba of the eclipse
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And this was narrated by Asma' who said, "Allah's Messenger (ﷺ) finished the eclipse prayer and by then the sun (eclipse) had cleared. Then he delivered the Khutba (religious talk) and praised Allah as He deserved and then said Amma ba'du."
Sahih al-Bukhari 1061