What is a second the "second" of? What time should noon actually be? And how can "hour" and "year" mean the same thing (because they do!)?

For most of human history, nobody needed an alarm clock. Work followed the sun. Time was fluid. Then the Industrial Revolution happened — and everything changed. The alarm clock didn't just wake people up. It synchronized all of humanity.

Ever wondered what “AM” and “PM” actually stand for?

Have you ever wondered how cities kept time before the era of electronic clocks? In this video, we'll dive into the fascinating story of the Paris underground clock system. Developed by Austrian engineer Victor Popp in the late 19th century, this ingeniou...

The earliest time measurements were observations of cycles of the natural world, using patterns of changes from day to night and season to season to build calendars.

Time: Do the past, present, and future exist all at once?

From the first episode of Genius, starring Geoffrey Rush as the older Einstein and Johnny Flynn as the younger.

Albert Einstein taught us that space and time belong together to a common entity: space-time. This means that time becomes a dimension, similar to space, and has profound consequences for the nature of time. Most importantly it leads to what has been call...