It is good to arrive to important events on time, or even early.
In the Nick of Time 关键时刻
Anna: I was worried you were not going to make it!
Dan: Oh. I'm here. I'm here. And I have all the things you asked me to bring...
Anna: Great! You got here just in the nick of time. We only have 5 minutes before the guest of honor arrives.
Dan: And that is?
Anna: My cat. And all her furry friends.
Dan: Your cat...
Anna: Meow!
If something happens “in the nick of time”, it happens at the last possible moment, just before it is too late. “Nick” was the word for a narrrow and exact maker.
Word experts say the phrase “in the nick” has been used for hundreds of years to mean “a critical moment.”