Well, the Hijri date 4 Jumada Al Oula 1439 corresponds to the Gregorian date Sunday, 21 January 2018. This date lies in the fifth month of the Hijri year 1439 AH, which is Jumada Al-Awwal of 1439 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1439/05/04 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 21 January 2018 to its equivalent Arabic date.
The following is the conversion of the Arabic date 4 Jumada Al Oula 1439 AH to its equivalent Gregorian date.
إِنِّىٓ أَخَافُ عَلَيْكُمْ عَذَابَ يَوْمٍ عَظِيمٍۢ
Lo! I fear for you the retribution of an awful day.
Surah Ash-Shu'araa(26:135)
Sahih al-Bukhari
Beginning of Creation
Chapter: If anyone says Amin [during the Salat (prayer) at the end of the recitation of Surat Al-Fatiha]
Narrated `Abdullah:
Regarding the Verse: "Indeed he (Muhammad) did see. Of the Signs of his Lord, The Greatest!" (53.18) That the Prophet (ﷺ) had seen a green carpet spread all over the horizon of the sky.
Sahih al-Bukhari 3233