Well, the Hijri date 15 Rabi Al Thani 1418 corresponds to the Gregorian date Monday, 18 August 1997. This date lies in the fourth month of the Hijri year 1418 AH, which is Rabi Al-Thani of 1418 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1418/04/15 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 August 1997 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Rabi Al Thani 1418 AH to its equivalent Gregorian date.
ٱلَّذِينَ تَتَوَفَّىٰهُمُ ٱلْمَلَٰٓئِكَةُ طَيِّبِينَ ۙ يَقُولُونَ سَلَٰمٌ عَلَيْكُمُ ٱدْخُلُوا۟ ٱلْجَنَّةَ بِمَا كُنتُمْ تَعْمَلُونَ
Those whom the angels cause to die (when they are) good. They say: Peace be unto you! Enter the Garden because of what ye used to do.
Surah An-Nahl(16:32)
Sahih al-Bukhari
Invocations
Chapter: Sleeping on the right side
Narrated Al-Bara' bin `Azib:
When Allah's Messenger (ﷺ) went to bed, he used to sleep on his right side and then say, "All-ahumma aslamtu nafsi ilaika, wa wajjahtu wajhi ilaika, wa fauwadtu `Amri ilaika, wa alja'tu zahri ilaika, raghbatan wa rahbatan ilaika. La Malja'a wa la manja minka illa ilaika. Amantu bikitabika al-ladhi anzalta wa nabiyyika al-ladhi arsalta! Allah's Messenger (ﷺ) said, "Whoever recites these words (before going to bed) and dies the same night, he will die on the Islamic religion (as a Muslim).
Sahih al-Bukhari 6315