People say it every day without thinking ― “two o’clock,” “six o’clock,” “eight o’clock sharp.” But what is the purpose of that little “o” and apostrophe? Is it short for something? Why do we only use ...

If your kiddo regularly bombards you with questions like, "What time is it?" "When is my friend going to get here?" or "How long until dinner?" they might be ready to learn how to tell time for ...