What is faster than a second?

Seconds can be divided into much smaller units. A millisecond is 1/1000 of a second, a microsecond is 1/1,000,000 of a second, a nanosecond is 1/1,000,000,000 of a second...

One of the smallest time scales defined by scientists is Planck time, defined a 10-44 seconds. That means if you divided a second up into

100,000,000,000,000,000,000,000,000,000,000,000,000,000,000

parts, one of those parts is the Plank time.