Well, the Hijri date 27 Ramadan 1408 corresponds to the Gregorian date Friday, 13 May 1988. This date lies in the ninth month of the Hijri year 1408 AH, which is Ramadan of 1408 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1408/09/27 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 13 May 1988 to its equivalent Arabic date.
The following is the conversion of the Arabic date 27 Ramadan 1408 AH to its equivalent Gregorian date.
وَوُضِعَ ٱلْكِتَٰبُ فَتَرَى ٱلْمُجْرِمِينَ مُشْفِقِينَ مِمَّا فِيهِ وَيَقُولُونَ يَٰوَيْلَتَنَا مَالِ هَٰذَا ٱلْكِتَٰبِ لَا يُغَادِرُ صَغِيرَةًۭ وَلَا كَبِيرَةً إِلَّآ أَحْصَىٰهَا ۚ وَوَجَدُوا۟ مَا عَمِلُوا۟ حَاضِرًۭا ۗ وَلَا يَظْلِمُ رَبُّكَ أَحَدًۭا
And the Book is placed, and thou seest the guilty fearful of that which is therein, and they say: What kind of a Book is this that leaveth not a small thing nor a great thing but hath counted it! And they find all that they did confronting them, and thy Lord wrongeth no-one.
Surah Al-Kahf(18:49)
Sahih al-Bukhari
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
Chapter: The return of the Prophet (saws) from Ahzab and his going out to Bani Quraiza
Narrated `Aisha:
When the Prophet (ﷺ) returned from Al-Khandaq (i.e. Trench) and laid down his arms and took a bath, Gabriel came and said (to the Prophet (ﷺ) ), You have laid down your arms? By Allah, we angels have not laid them down yet. So set out for them." The Prophet (ﷺ) said, "Where to go?" Gabriel said, "Towards this side," pointing towards Banu Quraiza. So the Prophet (ﷺ) went out towards them.
Sahih al-Bukhari 4117