Wiktionary
wastes time
vb. (en-third-person singularwaste time)
Usage examples of "wastes time".
I didn't look back to see how close they were because that wastes time.
After twenty minutes he came in from the street and began looking for me among the group of people because the poor little bastard had only had two weeks' training and he didn't know that when you make a protected rdv you don't use cover: it wastes time.
Above those, you needn't follow any pattern, but for local hops it wastes time to go that high.