Muhammad Habib Shakir: Nay, the hour is their promised time, and the hour shall be most grievous and bitter.
Abdullah Yusuf Ali: Nay, the Hour (of Judgment) is the time promised them (for their full recompense): And that Hour will be most grievous and most bitter.
M.Pickthall: Nay, but the Hour (of doom) is their appointed tryst, and the Hour will be more wretched and more bitter (than their earthly failure).
Amatul Rahmân Omer: The (promised) Hour (of their complete discomfiture) is their appointed time. The fact is that the Hour will be grievously calamitous and most bitter.