Provide are a household electric appliance, household electric system and server apparatus that perform operation start or stop at reserved set times and that are convenient with regard to reserving operation. A household electric appliance capable of a reserved operation of performing an operation start or stop at a set time comprises: a receiving unit that receives a setting signal indicative of an operation start time in the reserved operation of the household electric appliance from each of a remote controller and a mobile terminal; a storage unit that stores the setting signal; and a control unit that controls operation of the household electric appliance. The control unit, in the case of overlapping of an operation time zone defined by the setting signal from the remote controller and the operation time zone defined by the setting signal from the mobile terminal, selects the earlier time and performs the operation start.