Refill is designed for use with the two-page-per-day, original Day-Timer calendar set. Ideal for hourly billing. Two-page-per-day spreads have a place for lists and the appointment times from 8 AM to 5 PM on one page and a roomy, timed diary record of your work on the other page. Hours are neatly divided into tenths and quarters. Desk loose-leaf format includes address/phone pages, advance planning pages, reference pages, 12 monthly tabbed calendar dividers, 12 monthly auto mileage/expense forms, and a vinyl page locator. Planning pages range 12 months from January to December.