"on the dot" in Chinese (Simplified)
准时正点
Definition
正好在预定的时间，不早也不晚。
Usage Notes (Chinese (Simplified))
通常用于正式或非正式场合，表示时间的准确点，如“八点准时”。和“sharp”意思相近。一般不用于非时间场合。
Examples
Please arrive at eight on the dot.
请在八点**准时**到达。
The train leaves at six on the dot every morning.
火车每天早上六点**准时**发车。
We have to be there on the dot or we can't get in.
我们必须**准时**到达，否则无法进去。
She called me at ten on the dot—I couldn't believe it.
她十点**准时**打电话给我——我简直不敢相信。
Our meetings always start on the dot—don’t be late.
我们的会议总是**准时**开始，别迟到。
The boss showed up on the dot for the interview.
老板面试时**准时**出现了。