Six seconds is a hard length to set on most timers and a surprisingly useful one. It is about the length of a slow, calming breath out, a steady three-two-one-go countdown before a photo or a race, or the pause you give a room before you start speaking. Short, exact, and over before you can lose track of it.
Need it again and again — counting breaths, turns, or reps? Set a round count in the editor and the six-second countdown runs one after another; ten rounds takes a minute, so a short sequence builds without resetting each time.