Well, the Hijri date 20 Rajab 1408 corresponds to the Gregorian date Tuesday, 8 March 1988. This date lies in the seventh month of the Hijri year 1408 AH, which is Rajab of 1408 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1408/07/20 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 8 March 1988 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Rajab 1408 AH to its equivalent Gregorian date.
وَإِذْ قَالُوا۟ ٱللَّهُمَّ إِن كَانَ هَٰذَا هُوَ ٱلْحَقَّ مِنْ عِندِكَ فَأَمْطِرْ عَلَيْنَا حِجَارَةًۭ مِّنَ ٱلسَّمَآءِ أَوِ ٱئْتِنَا بِعَذَابٍ أَلِيمٍۢ
And when they said: O Allah! If this be indeed the truth from Thee, then rain down stones on us or bring on us some painful doom!
Surah Al-Anfaal(8:32)
Sahih al-Bukhari
Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
"And from wheresoever you start forth (for prayers), turn your face in the direction of Al-Masjid-al-Harãm (at Makkah), and wheresoever you are, turn your face towards it [when you pray)]..." (V.2:150)
Narrated Ibn `Umar:
While some people were offering Fajr prayer at Quba mosque, someone came to them and said, "Qur'anic literature" has been revealed to Allah's Messenger (ﷺ) tonight, and he has been ordered to face the Ka`ba (of Mecca) so you too, should turn your faces towards it. Their faces were then towards Sham (Jerusalem), so they turned towards the Qibla (i.e. Ka`ba of Mecca).
Sahih al-Bukhari 4494
