Yes, the day is structured, because (for example) the grades have to coordinate schedules for subject teachers like handwork, language, and/or eurythmy.
At our school (probably fairly typical), main lesson runs for around two hours (younger grades spend much of that time in circle or doing physical activities associated with the lesson). After snack and recess, there are two forty-five minute periods before lunch, and three more after lunch, and they are scheduled every day.
Classes scheduled into these time slots include (depending on grade level) German, handwork, movement (we don't have eurythmy), painting, bookwork (working on main lesson books), nature walks, reading aloud by the teacher, and for older classes woodworking, math/language skills classes, string ensemble, recorder ensemble, chorus, "reading buddies" (older grades read with younger grades),...
My children began doing their own main lesson book writing starting around third grade, but continued with some dictations through eighth grade. By fifth grade, though, most of the writing and many of the pictures are done individually.
I'd be surprised if there wasn't a schedule posted in each classrom at your local school. If not, I'm sure they can provide one to you.