To provide a calendar which is less costly, not bulky and peculiar to an individual person.

This tear-off calendar is structured of two sheets laminated together in a re-releasable manner, a first sheet having a date display part indicating a specified period unit with a nicked peripheral edge and a second sheet having a relative proper message described correspondingly to the date display part formed on the first sheet. Further, the proper message described on the second sheet, appears in a peeled opening by releasing the date display part formed on the first sheet along the nicked line.