One of the fundamental mysteries surrounding the concept of time is whether it’s continuous and our chronological measurements are just a way of making the sense of the world, or if it actually breaks ...

Scientists said that "zeptosecond" is the smallest amount of time. The new unit represents one trillionth of a billionth of a second (10 to the -21st power), which is smaller than a millisecond. In ...

The smallest conceivable length of time might be no larger than a millionth of a billionth of a billionth of a billionth of a second. That's according to a new theory describing the implications of ...