Eschatological Timing

The angels said, "O Lot, indeed we are messengers of your Lord; [therefore], they will never reach you. So set out with your family during a portion of the night and let not any among you look back - except your wife; indeed, she will be struck by that which strikes them. Indeed, their appointment is [for] the morning. Is not the morning near?"

And those cities - We destroyed them when they wronged, and We made for their destruction an appointed time.