6Atomic Clock (RCC)AcuRite atomic clocks use a radio-controlled signal (RCC) to synchronize to thecorrect time broadcast by the National Institute of Standards and Technology(NIST) Radio Station WWVB, located near Fort Collins, Colorado. WWVBbroadcasts the current time and date with split-second accuracy.The atomic clock and calendar will maintain the correct time and date, andautomatically update for daylight saving time to provide the most accuratetimekeeping standard possible.Please note: Signal reception is normally better at night and when the weatheris clear. The atomic signal generally takes a few hours to synchronize, so it isimportant to manually set the time and date after powering on the clock.Select Temperature UnitsWhile in current time display mode, press the ” “ button to toggle betweenbetween degrees Fahrenheit (°F) or degrees Celsius (°C) indoor temperature.Set the Time & DatePress and release the CLOCK ADJUST button, located on the front of the clock,to enter the SET MODE. Once in SET MODE the preference you are currentlysetting will blink on the clock.To adjust the currently selected (flashing) item, press and release the ” “ or“ “ buttons (press and HOLD to fast adjust).To save your adjustments, press and release the CLOCK ADJUST button toadjust the next preference. The preference set order is as follows:12hr/24hrTIME ZONE (PST MST CST EST AST HAST AKST)CLOCK HOURCLOCK MINUTECALENDAR MONTHCALENDAR DATECALENDAR YEARYou will automatically exit SET MODE if no buttons are pressed for 5 seconds.Enter SET MODE at any time by pressing the CLOCK ADJUST button.* To set DST, use the DST ON/OFF switch located in the battery compartment.If you live in an area that observes daylight saving time, DST should be set toON.