# Picosecond

A **picosecond** is an standard unit of measuring time. It is equal to 10^{−12} of a second. That is one trillionth, or one millionth of one millionth of a second, or 0.000000000001 seconds.

- Notation

- 10
^{-10}seconds is 100 picoseconds. - 10
^{-9}seconds is 1 nanosecond.

- Examples

- One picosecond is the half-life of a bottom quark.
- Ten picoseconds after the Big Bang, electromagnetism became its own force.
- It takes light about 3.3 picoseconds to travel one millimeter.
- It takes a common 3.0-gigahertz computer 3.3 × 100 picoseconds to add two integers together.