office hours

office hours pl (plural only)

1. The times, typically from about 9am to 5pm, Monday to Friday, when non-24/7 office workers are at their desks.

   To request a brochure, please call during office hours.

   • 1919, Henry B[lake] Fuller, “Cope Again in the Country”, in Bertram Cope’s Year: A Novel, Chicago, Ill.: Ralph Fletcher Seymour, The Alderbrink Press, →OCLC, page 274:

     He cut his Psychology once or twice, nor could he succeed, during office hours, in keeping his mind on office-routine.

2. A pre-arranged time when a person whose occupation frequently takes them away from their office during working hours is available in their office to answer questions or provide assistance without the requirement for an appointment.

   If you need help with the homework, the professor will be holding office hours on Thursday from 7–9pm.

• bankers' hours
• business hours