To provide a calendar capable of easily grasping that how many days are passed from the beginning of the year to today and how many days are left from today to the end of the year.

The center is started as 1, and a figure of clockwise continued days for one year is displayed with the figure spirally disposed and arranged outside. A calendar is provided with date and day of the week from January 1 to December 31 overlapped in order along with the figure. January 1 overlaps with the starting 1 and December 31 overlaps with the last 365. Similarly, a calendar displayed using a figure which starts from the reverse is created. The center is 365 and a figure of days successively reduced to 1 is displayed with the figure spirally displayed outside. Date and day of the week from January 1 to December 31 are overlapped in order and written with the figure. January 1 overlaps with the starting 365 and December 31 overlaps with the last 1.