What is an open office hours?
Open office hours is normally used to explain office hours for a
business that is open on a "to be announced" type of schedule. If
the business hours change every week, or if the business hours are
very few and far between, and normally only open upon appointment,
then the Open Office Hours would indicate that you are welcome to
visit them during the Open Office Hours designated. If scheduling
an appointment is necessary, then this will be explained. If
scheduling an appointment is not mentioned, then it is not needed,
and you must show up promptly so as not to be in a long line
waiting to be helped.