it is high time that .

it is high time that .
it is high time that .

it is high time that .
要做某事最合适的时间

什么的高峰，高潮

high time
n.
正是时候, 早该
high time
Long overdue:
早已超过时间：
It's high time that you started working.
你早该开始工作了

正是时候

和It's the time that一样，

该是做。。。的时候了