Surah 54. Al-Qamar, Ayah 46

Lit., "the time appointed for them" (maw'iduhum).

The calculations of unjust men-on their science, their resources, their numbers, etc.-will in many cases be falsified even in this world, as stated in the last two verses, but their real Punishment will come with Judgment, i.e., when they find their real place in the next world at the restoration of true values. It will then be a most grievous and bitter experience for them, throwing into the shade any calamities they may suffer in this life.