Definition:Valid Time Indication

Definition

Consider an analogue clock with an hour hand $H$ and a minute hand $M$.

A valid time indication is an arrangement of $H$ and $M$ which indicates a specific time of day (either a.m. or p.m.).

This article contains statements that are justified by handwavery. In particular: It is not at all clear what it means to "indicate a specific time of day" since we have not defined how a clock works. I can imagine we don't want to go that far because it would be beside the point, but then we should explain that it is different from a random orientation of H and M which does not correspond to normal operation of a clock. You can help $\mathsf{Pr} \infty \mathsf{fWiki}$ by adding precise reasons why such statements hold. To discuss this page in more detail, feel free to use the talk page. When this work has been completed, you may remove this instance of {{Handwaving}} from the code. If you would welcome a second opinion as to whether your work is correct, add a call to {{Proofread}} the page.