Well, the Hijri date 18 Rajab 1383 corresponds to the Gregorian date Wednesday, 4 December 1963. This date lies in the seventh month of the Hijri year 1383 AH, which is Rajab of 1383 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1383/07/18 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 4 December 1963 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Rajab 1383 AH to its equivalent Gregorian date.
إِن يَشَأْ يُذْهِبْكُمْ أَيُّهَا ٱلنَّاسُ وَيَأْتِ بِـَٔاخَرِينَ ۚ وَكَانَ ٱللَّهُ عَلَىٰ ذَٰلِكَ قَدِيرًۭا
If He will, He can remove you, O people, and produce others (in your stead). Allah is Able to do that.
Surah An-Nisaa(4:133)
Sahih al-Bukhari
Call to Prayers (Adhaan)
Chapter: One should say Takbir while going in prostration.
Narrated Abu Bakr bin `Abdur Rahman Ibn Harith bin Hisham and Abu Salama bin `Abdur Rahman:
Abu Huraira used to say Takbir in all the prayers, compulsory and optional -- in the month of Ramadan or other months. He used to say Takbir on standing for prayer and on bowing; then he would say, "Sami`a l-lahu liman hamidah," and before prostrating he would say "Rabbana wa laka lhamd." Then he would say Takbir on prostrating and on raising his head from the prostration, then another Takbir on prostrating (for the second time), and on raising his head from the prostration. He also would say the Takbir on standing from the second rak`a. He used to do the same in every rak`a till he completed the prayer. On completion of the prayer, he would say, "By Him in Whose Hands my soul is! No doubt my prayer is closer to that of Allah's Messenger (ﷺ) than yours, and this was His prayer till he left this world."
Sahih al-Bukhari 803