zero hour
the exact time when an attack or other military action is supposed to start
发动攻击的时间；采取军事行动的时间
The company was told that their zero hour was 3 a．m．
连队奉命于凌晨3点开始行动。
the time when an important decision or change is supposed to come；the time for a dangerous action
做出重要决定或重要变动的时间；关键时刻；危急关头
It was zero hour and the doctor began the operation on the patient．
那是个关键的时刻，医生开始为那个病人动手术了。
But then, zero hour arrives.The AWACS plane becomes the coordinator of the raids.
时钟跳过零点，AWACS飞机立刻成为了空袭的协调中心。
One of those options is The Zero Hour Workweek — a guide to getting paid to be who you are.
其中的一个选择就是《零时工作周》-----一个成为真正的自己的指南。
The result is expected to be very close so both sides are working hard to get every last vote before the zero hour at ten o'clock tomorrow morning when the final voting will start.
预计表决的结果将十分接近，预定明天上午十点举行决定性的投票，所以双方在关键时刻来临前夕正在竭尽全力地争取每一张投票。
The result is expected to be very close so both sides are working hard to get every last vote before the zero hour at ten o'clock tomorrow morning when the final voting will start.
他说：预计表决的结果将十分接近，预定明天上午十点举行决定性的投票，所以双方在关键时刻来临前夕正在竭尽全力地争取每一张投票。
They had the personnel, the money, the arms. Almost all the elements for terror attacks were complete except for setting the zero hour for the attacks.
他们有人员，有金钱，有武器。 几乎恐怖袭击的所有要素都具备齐全，只是决定进攻的时间。
