Electronic device with calendar function including determining the first week of the year

摘要

An electronic device with a calendar function having an input device, so that a desired date can be entered in the electronic device. The day of the week that January 1st falls on in the year corresponding to the desired date is determined. The ordinal number of a week in which the entered desired date falls is determined dependent on the day January 1st falls on. For example, if January 1st is between a first day of the week and a fourth day of the week, the week corresponding to January 1st is deemed as the first week in the year, if January 1st is between a fifth day and a seventh day of the week, the week following the week to which January 1st belongs is deemed as the first week of the year. A display is provided displaying the ordinal number of the week of the year in which the entered desired date falls.