Mother above, how could the time have slipped away from her so quickly?

But in another sense the big time almost slipped away from him.

He could feel time slipping away, and the need to know was like a fire in his mind.

Time was slipping away, and they had yet to get a clear shot.

But all he got was that same pressure of time slipping away.

It felt to him as if time was slipping away from them all.

And he had a feeling that time was slipping away from them.

Time was slipping away, and they had to do something about it.

We watched time slip past without trying to stop it.

As you have made clear, time has already slipped into another stream.