When someone (or something) can be booked: hours for each day of the week, one or more ranges a day, a day turned off, a day's hours copied to the others in one step, the time zone they are in, and exceptions for particular dates (a holiday off, a Saturday on). A week strip draws the hours at a glance, a sentence says them back, and overlapping or reversed ranges are said in words where they are. (Beamline complete system)