If you’ve ever heard someone say a meeting is at 1630 and then felt your brain do a small cartwheel, you have met the 24-hour clock. In the United States, we mostly live by the 12-hour clock, with a.m ...

"The race takes your mind and body to the limit." What's the formula for winning the world's most famous endurance sports car race? Discipline, determination, intense training -- and a little bit of ...