What is the shortest unit of time
known to physics?

Q: What is the shortest unit of time known to physics?

The Planck time — approximately 5.4 × 10⁻⁴⁴ seconds.. The smallest interval before quantum mechanics stops being coherent. There are more Planck times in one second than seconds in the universe’s age.

Question

Accepted Answer

The Planck time — approximately 5.4 × 10⁻⁴⁴ seconds. — The smallest interval before quantum mechanics stops being coherent. There are more Planck times in one second than seconds in the universe’s age.