The clock could tell the correct time in two places, meeting the requirements for learning longitude on the sea.

VOA: special.2010.07.14

Now, the clock says I've run out of time.

哦,我们的时间不多了

耶鲁公开课 - 美国内战与重建课程节选

First of all, negative time should not bother anybody; t=0 is when I set the clock, I measured time forward, but yesterday would be t = -1 day, right?

首先,负的时间对我们不存在任何干扰,t=0使我们设定的初始时间,我是用顺序计时,所以昨天就可以记为-1天,对吗

耶鲁公开课 - 基础物理课程节选

And administrators had planned to return to the eight o'clock start time after the study.

VOA: special.2010.07.07

Central Standard Time, two o'clock Eastern Standard Time, some thirty-eight minutes ago."

VOA: special.2009.08.16