La Crosse Technology Weather Channel WS-8117CTWC Atomic Digital Wall Clock with Outdoor Temperature Sets automatically by radio signal to atomic clock for time/date accuracy Reports indoor/outdoor temperatures in Fahrenheit or Celsius plus current moon phase 12- or 24-hour time mode; dual LCD screens; alarm with snooze Covers 13 different time zones from GMT to -12 GMT Wall-hanging or freestanding; 12 by 1-1/4 by 8 inches