Well, the Hijri date 27 Dhul Hijjah 1438 corresponds to the Gregorian date Monday, 18 September 2017. This date lies in the twelfth month of the Hijri year 1438 AH, which is Dhu Al-Hijjah of 1438 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1438/12/27 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 18 September 2017 to its equivalent Arabic date.
The following is the conversion of the Arabic date 27 Dhul Hijjah 1438 AH to its equivalent Gregorian date.
ٱلْيَوْمَ تُجْزَىٰ كُلُّ نَفْسٍۭ بِمَا كَسَبَتْ ۚ لَا ظُلْمَ ٱلْيَوْمَ ۚ إِنَّ ٱللَّهَ سَرِيعُ ٱلْحِسَابِ
This day is each soul requited that which it hath earned; no wrong (is done) this day. Lo! Allah is swift at reckoning.
Surah Ghafir(40:17)
Sahih al-Bukhari
Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
"...And if you are ill, or on a journey, or one of you comes after answering the call of nature..." (V.4:43)
Narrated `Aisha:
The necklace of Asma' was lost, so the Prophet (ﷺ) sent some men to look for it. The time for the prayer became due and they had not performed ablution and could not find water, so they offered the prayer without ablution. Then Allah revealed (the Verse of Tayammum).
Sahih al-Bukhari 4583