Daylight saving time​ in 2025, when clocks change by an hour, has started. Here's a look at when exactly we "spring forward." ...

This means: Time zones are not always in straight lines on the longitudes on Earth. This is because they may need to curve around country borders. You can see this in the map below. It is night ...

Why does China only have one time zone despite spanning five? Discover the historical, political, and practical reasons ...

It wasn't until the passing of the Uniform Time Act of 1966 that daylight saving became permanent, which established time ...