Are you talking about raising and lowering the segments?
See images of timer segments and pins.
http://waterheatertimer.org/Woods-timers-and-manuals.html#Pins-tabsIf your timer style is not show, add a comment.
You posted under Woods 59200 timer.
There are segments located around edge of dial.
Each segment represents 1 hour
Timer arrives with segments pushed down.
To set timer, raise the segments up for all times you want timer OFF
Leave segments down for times you want the timer ON.