To provide a calendar display program and a calendar display method for displaying a calendar including a user's payday that automatically display a month calendar from the payday to the next payday simply and reliably whichever day in the month the user's payday may be.

The calendar display method has the steps of: determining a payday and a next business day/last business day payment from a user's past deposit information; determining the payday as a display base day if the payday of a month to be displayed is a business day or, if the payday is not a business day, determining the next business day after the payday or the last business day before the payday as a display base day according to the determined next business day payment or last business day payment; and displaying a month calendar based on the determined display base day.

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