La Crosse Technology's Digital Atomic clock is loaded with so many functions, including a calendar that displays the day and date and wireless outdoor temperature. Customize the clock settings for either 12hr or 24hr time and read temperatures in either Fahrenheit or Celsius. Its so easy to set, as this clock self programs the time automatically to any time zone (adjustable from GMT-0 to +/- 12) and corrects to Daylight savings.