Time is something we can’t escape. From the moment we first understand the concept as a youngster to the second we draw our last breath, it’s always on our mind. But how do we know that a minute is truly a minute or an hour is actually an hour? We have to assume that the clock or even a stopwatch is correct. The one thing we can’t count is milliseconds. They’re why we add an extra day to the calendar every four years. Scientists recently found that global warming is affecting time. And that means we may have to adjust our clocks even more. That’s concerning…