She could not persuade him not to waste half an hour to save a few pennies.

They were held up in a traffic jam for half an hour.

He walked two miles in half an hour.

It rained like mad for about a half-hour.

He will be here in half an hour.

The freight train was held up about half an hour because of a dense fog.

An accident delayed us for half an hour.

I can do it in half the time.

The dishes can be washed in half an hour.

This work can be finished in half an hour.