To provide a strap for calendar that saves the trouble to extract and newly stick a pin when a necessary month appears on the top by turning over pages of a holed calendar, solves such a problem that a limitless number of piercing holes are left in a wall, and eliminated the need to spend a large amount of money to advertise an individual name or company name to customers by entering it into a part of the calendar.

The strap for calendar is provided for each page of a calendar A, and comprises an annular cord 2 to be run through a suspension hole B overlapping at a suspension position when a necessary page is put on the top, and a signboard 3 which is coupled with the annular cord 2 and has larger area than the suspension hole B. A pin D which is stuck into a wall once is left as it is (neither extracted nor stuck again), and the annular cord 2 is extracted from the hole B of the calendar A, the necessary month is put on the top, and the annular cord 2 is again run through the hole of the calendar to be hooked on the pin.