McVeigh's original plan had been to detonate the bomb at 11:00 a.m., but at dawn on April 19, 1995, he decided instead to destroy the building at 9:00 a.m.
麦克维原计划在上午11点引爆炸弹，但到了1995年4月19日拂晓，他决定提前到9点开始。