be high time 該是時候做某某事
說明：
主詞要用 impersonal subject “it”，動詞用 ve。high time 亦可寫成 about time。high time 和 about time 比較，high time 較有壓迫感，指某事不能再拖延了。about time 則可解作「時間剛剛好做某件事。」
例子：
I have been laid off for two months. It is high time for me to find a new job.
It is about time for you to get a new job, honey. We are running out of money.
by Thomas Shum