By their own time, they'd been inside maybe half an hour.

I sent those two field men inside half an hour ago.

He should be finished inside an hour, if all went well.

Speed is the key here: you can be in and out inside an hour.

The police gave those inside 24 hours to turn in their guns.

"I'll have this thing done inside an hour, if you leave me alone."

You'll certainly be freed inside an hour and a half.

They'll be in and out of that prison inside two hours flat.

Inside an hour, a terrible sight was to be seen in that area.

Inside half an hour preparations for the marriage took place.