Refill is designed for use with the two-page-per-day Original Day-Timer calendar set. Each two-page-per-day spread includes a space for notes,lists and appointment times from 8 AM to 5 PM. Diary hours are divided into quarters for precise record-keeping. Pocket wirebound format includes an address/phone booklet,advance planning calendar,and work organizer booklet. Planning pages range 12 months from January to December.