It is a true saying that time and tide wait for no man.

“时不我与”， 确是至理名言。

《新英汉大辞典》

Time and tide wait for no man.

岁月不等人。

《新英汉大辞典》

"It is a long time coming and marks a turning of the tide in how we approach these extinctions of the Late Quaternary," she says.

她指出：“这标志着在接下来的很长一段时间内，我们将转向如何处理晚第四纪的灭绝。”

youdao

Spotting them can simply depend on the time of day and tide conditions.

BBC: Springwatch 2010: Seals on Blakeney Point in Norfolk

However, by this time the tide was turning and many leading educators were questioning the effectiveness of mixed ability teaching.

BBC: Setting, streaming - how schools teach

I'm unable to work or parent effectively for months or even years at a time - then the tide goes out and I feel "normal" for a while, able to function again.

BBC: Bipolar holiday