Have you ever wondered what happens beneath the waves while you sleep? Coral reefs are not just static underwater gardens—they are bustling cities that never truly rest, where the rhythm of life ...

Like most armed forces across the world, the U.S. military uses the 24-hour clock. But why does military time exist, and when was it first adopted?

Earth may experience its shortest day ever, with the Moon’s position speeding up the planet’s rotation by about 1.3-1.6 milliseconds.

The U.S. Navy began using the 24-hour clock in 1920, after becoming familiar with it during World War I. The U.S. Army didn't officially adopt military time until 1942. Read More: The Military ...

24-Hour Clock (Manual) by Sam Newman The Copenhagen-based American designer created the most low-tech clock possible. His design consists of a 1,440-page notepad with 86,400 tick boxes, one for ...

On a 24-hour clock, 14:30 means it’s 2.30 pm in the afternoon. After midday, the 24-hour clock continues counting up from 12, so 14:00 is 2.00 pm.