stupid o'clock

Ridiculously late hour

Stupid o'clock is an absurdly early or late hour—a time when sensible people are asleep.

The phrase suggests the hour is so unreasonable it defies logic: My flight leaves at stupid o'clock, so I'll just stay up all night.

British in origin, now widespread in informal speech.

Related

witching hour · overworking · insomnia · dead of night · sleep deprivation · sleep schedule · jet lag · early riser · burning the midnight oil · all-nighters · binge-watching · graveyard shift · night owl · last call · silly season · wee hours · midnight snacks · twilight zone

Opposites
time reasonableness

stupid o'clockregular hours

Fixed, consistent work times

business hours · normal time · daytime · office hours · nine to five

time specificity

stupid o'clocknoon

Day's exact middle

three o'clock · high noon · on the dot

Family

stupid, stupidly, stupidity, stupider, stupidest, clock, clocks, clocked, clocking

Familiarity
Top 500,000
Profile
Abstract · Everyday, not technical · Rated G