Now is the time for you to pull back before it is too late.

现在是你悬崖勒马的时候了。

《新英汉大辞典》

An important principle here is that it is never too late for you to make a change in your life, even though making the change may take longer than you think.

这里一个重要的原则是，对你来说在生活中做出改变永远也不会太迟，尽管改变可能要花比你想象得更长的时间。

youdao

Love is a telephone, but it is difficult to seize the right time for dialing, and you will let slip the opportunity if your call is either too early or too late.

爱情这部电话，很难把握拨号时机。拨得太早或者太迟，机遇均会丧失。

youdao

But I am telling you this after you already signed up for the class so it is too late to leave.

我在你们选了这门课后才挑明,想退课也晚了。

哈佛公开课 - 幸福课课程节选

If you have tax to pay it is too late for it to be collected through your PAYE code and you will need to send a cheque with your form.

BBC: The tax deadline at the end of January

In the interest of full disclosure, I did not pay for the bottle I am about to lovingly describe, but then again, it is not yet for sale, and if I waited it would be too late to tell you about it because it would no longer exist.

FORBES: The Best Rum I Ever Tasted

This makes it very easy to reference the current time of the program, the name of the show, how big your buffer is and how much time is left -- perfect for those late nights when you want to check the time and determine if it is too late to finish what you've started.

ENGADGET: DirecTV Genie whole-home DVR review HD