A clock device for switching between standard and daylight saving time. The device features a housing with standard alarm clock features. A recess is disposed in the front of the housing. A digital display piece having a front face with a first digital display and a back face with a second digital display snaps into the recess in the housing. The digital display piece can rotate such that either the first or the second digital display faces forwardly. The first digital display is adapted to display standard time and the second digital display is adapted to display daylight saving time. A time change button is disposed on housing, the time change button can pivot between a standard time position and a daylight saving time position. The time change button rotates the digital display piece such that either the first digital display faces forwardly or the second digital display faces forwardly.