To provide an air conditioner enabling timer setting on a plurality of days of the week by a simple operation.

The air conditioner capable of performing timer setting of operation start or operation stop in a plurality of time zones with respect to one day of the week includes: a setting receiving means which receives an operation of the timer setting; an all days of week setting means which receives an operation of timer setting en bloc with respect to all days of the week; and an individual day of week setting means which receives an operation of timer setting independent with respect to individual day of the week, wherein the setting receiving means receives an operation of the timer setting by means of the all days of week setting means and the individual day of week setting means with respect to the subsequent time zone, after receiving the operation of the timer setting by means of the all days of week setting means and the individual day of week setting means with respect to one time zone of the plurality of time zones.