Well, the Hijri date 19 Rabi Al Thani 1408 corresponds to the Gregorian date Thursday, 10 December 1987. This date lies in the fourth month of the Hijri year 1408 AH, which is Rabi Al-Thani of 1408 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1408/04/19 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 10 December 1987 to its equivalent Arabic date.
The following is the conversion of the Arabic date 19 Rabi Al Thani 1408 AH to its equivalent Gregorian date.
وَإِن كَادُوا۟ لَيَفْتِنُونَكَ عَنِ ٱلَّذِىٓ أَوْحَيْنَآ إِلَيْكَ لِتَفْتَرِىَ عَلَيْنَا غَيْرَهُۥ ۖ وَإِذًۭا لَّٱتَّخَذُوكَ خَلِيلًۭا
And they indeed strove hard to beguile thee (Muhammad) away from that wherewith We have inspired thee, that thou shouldst invent other than it against Us; and then would they have accepted thee as a friend.
Surah Al-Israa(17:73)
Sahih al-Bukhari
Al-Adha Festival Sacrifice (Adaahi)
Chapter: What may be eaten of the meat of sacrifices and what may be taken as journey food
Narrated Abu `Ubaid:
(in continuation of above). Then I witnessed the `Id with `Uthman bin `Affan, and that was on a Friday. He offered the prayer before the sermon, saying, "O people! Today you have two 'Its (festivals) together, so whoever of those who live at Al-`Awali (suburbs) would like to wait for the Jumua prayer, he may wait, and whoever would like to return (home) Is granted my permission to do so."
Sahih al-Bukhari 5572