To provide a tear-off calendar which can prevent a missing page and an erratic page from occurring due to gathering error during manufacturing, cut material and personnel costs and eliminate unnecessary space from a viewpoint of packing form of a finished product, and curtail conveyance spending.

The two-layer structured calendar has at least a part laminated with a releasable adhesive, and a first layer sheet and a second layer sheet showing a date arranged in an identical fashion. In addition, the first layer sheet has date display parts arranged with a nicked peripheral edge for releasing on a daily basis, and the date display parts arranged on the second layer sheet appear in an opening formed after releasing the date display parts of the first layer sheet.