Noun
working time (plural working times)
(law) The period of time that an individual spends at paid occupational labor. Most countries regulate the working time by law, e.g. by stipulating a maximum number of working hours per week. Exact definition varies by the legislation.
Synonym: working hours
I wish my readers took less of my time - about a third of my working time goes to them - but I love and need them all. Piers Anthony