From Longman Dictionary of Contemporary Englishclock off phrasal verb British English1 informal to leave work at the end of the day What time do you clock off?2 to record on a special card the time you stop or leave work By 6 p.m. most workers have clocked off. → clock→ See Verb tableFrom Longman Business Dictionaryclock off British English (also clock out) phrasal verb [intransitive] to record on a special card the time you stop work or leave workI’m clocking off early today. → clock→ See Verb table