auto-off timer

noun

UK /ˌɔːtəʊ ˈɒf ˈtaɪmə/

US /ˌɔːtoʊ ˈɔf ˈtaɪmər/

A timer that turns something off by itself after a set time.

I set the auto-off timer so the lamp turns off after one hour.

SYNONYMS

sleep timer shutoff timer automatic timer power-off timer countdown timer

RELATED WORDS

timer switch appliance shutdown automation

OTHER MEANINGS

2. A feature on a device that stops it automatically to save power.

The TV's auto-off timer saved electricity while we slept.

3. A setting that ends a game or session after a fixed period.

The console's auto-off timer paused the game after thirty minutes.

4. A safety control that cuts power when time runs out.

The heater has an auto-off timer to prevent overheating.