The 1,290-day and 1,335-day time periods refer to events that will happen in this generation. Each period begins with a significant prophetic event.
Several types of the abomination of desolation have occurred in history, including the desecration of the temple by Antiochus Epiphanes and the Roman legions.
Nine steps had to be included with the Passover observance, all within the house until morning. It takes place between sun's setting and complete darkness.