A sundial discovered outside a tomb in Egypt's Valley of the Kings may be one of the world's oldest ancient Egyptian sundials, scientists say. Dating to the 19th dynasty, or the 13th century B.C., the ...

For thousands of years, humans measured the passage of time using nothing but the shadows cast by the sun, a remarkable achievement that combined astronomy with precise mathematical calculations. When ...

We’re always a fan of an interesting or unique clock build around here, which often use intricate pieces of technology to keep time such as weights and gears, crystal oscillators, or even a global ...

These days, you probably aren’t going to consult a sundial. But the ancient time-telling devices are all over DC, and we were curious to learn more about them. Dedicated in 1905, the Washington ...