Well, the Hijri date 30 Muharram 1439 corresponds to the Gregorian date Friday, 20 October 2017. This date lies in the first month of the Hijri year 1439 AH, which is Muharram of 1439 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1439/01/30 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 20 October 2017 to its equivalent Arabic date.
The following is the conversion of the Arabic date 30 Muharram 1439 AH to its equivalent Gregorian date.
۞ وَلَقَدْ جَآءَكُم مُّوسَىٰ بِٱلْبَيِّنَٰتِ ثُمَّ ٱتَّخَذْتُمُ ٱلْعِجْلَ مِنۢ بَعْدِهِۦ وَأَنتُمْ ظَٰلِمُونَ
And Moses came unto you with clear proofs (of Allah's Sovereignty), yet, while he was away, ye chose the calf (for worship) and ye were wrong-doers.
Surah Al-Baqara(2:92)
Sahih al-Bukhari
Fasting
Chapter: Observing Saum (fast) on the day of 'Ashura.
Narrated Salim's father:
The Prophet (ﷺ) said, "Whoever wishes may fast on the day of 'Ashura'."
Sahih al-Bukhari 2000