Loose-leaf desk calendar refill features each weekday on a two-page spread with ruled, half-hourly appointment times from 7 AM to 5 PM as well as past, current and future months reference and Julian dates. Planning pages range 12 months from January to December. Bases and refills are sold separately. Refill is sized and two-hole punched to fit standard 17-style bases (E17, M17, and J17).