Are you trying to make products to let students practice elapsed time within an hour? I was, but I couldn't find any number lines to use. I am not usually a clip art artist, but I really needed these number lines.
I made number lines that show every minute, every five minutes, and every ten minutes in the hour. I made labeled and unlabeled number lines. I made white and transparent backgrounds too.
You can use these number lines in any of your products without giving credit, but please secure the images in your document. Do not give away or sell the images.