COMMENTARY on 79:43
Mustafa Khattab:

Translation:
But it is not for you to tell its time.6
Commentary:
6   Another possible translation: “What is this question? You ˹O Prophet˺ are one of its signs.” It is believed—based on authentic narrations from the Prophet—that he (ﷺ) is one of the signs of the Day of Judgment.

 

Muhammad Asad:

Translation:
[But] how couldst thou tell anything about it, 17
Commentary:
17  Lit., "wherein [or "whereon"] art thou with regard to stating it (min dhikraha)?"