He couldn't believe how much had changed in the last twelve hours.

So something changed his mind in the last two hours.

"We don't expect that to change in the next 24 hours."

Up the hill, though, things had changed in the past few hours, and very much for the worse.

That tune may have changed in the last 24 hours.

I picked up a newspaper to see if the world had changed in the past 48 hours.

The only thing that's changed in the past hours is that we've lost a base and a lot of good men.

Obviously, something fundamental had changed in the last few hours.

It must look as if nothing had changed in the past few hours.

The place hadn't changed much in the past two hours.