Runs But Can Never Flee

Riddle: It runs and runs but can never flee. It is often watched, yet never sees. When long it brings boredom, When short it brings fear. What is it?

Answer: Time, which is often watched when you stare at a clock.

Source: https://www.riddles.com/527

It runs and runs but can never flee. It is often watched, yet never sees. When long it brings boredom, When short it brings fear.
What is it? — Runs but can never flee by Anonymous v1.

Riddle: It runs and runs but can never flee. It is often watched, yet never sees. When long it brings boredom, When short it brings fear.
What is it? Answer: Time, which is often watched when you stare at a clock. — by Anonymous v2.