Translation of the verse 42 from Surah An-Nazi‘at : Number of verses 46 - - page 584 - Part 30.
They ask you (O Muhammad (Peace be upon him)) about the Hour, - when will be its appointed time?
They ask you, [O Muhammad], about the Hour: when is its arrival?
(79:42) They ask you about the Hour: 'When will it be?' *22
*22) The disbelievers of Makkah asked this question of the Holy Prophet over and over again. By this they did not mean to know the time and date of the coming of Resurrection but to mock it. (For further explanation, see E.N. 35 of Surah Al-Mulk).
Source : An-Nazi‘at Verse 42: They ask you, [O Muhammad], about the Hour: when is its arrival?