I wondered why she didn't keep it on all the time.

Couldn't even tell you that, he kept his hat on all the time.

Oh yes, Jackson: you'll need to keep a check on the time.

It wouldn't work because most single men would keep their lights on all the time, just in case.

He glanced at his watch, needing to keep an eye on the time.

I was too busy to keep my eye on the time.

To learn, I kept mine on the entire time.

"You keep the heat on all the time when you're gone?"

At first, he'd kept it on all the time, for a kind of company.

Get an early start, keep your eye on the time and don't overextend yourself.