SELF-SETTING, SELF-ADJUSTING CLOCK: Insert the batteries provided and the Marathon UltraWide Atomic Wall Clock will synchronize to the correct time using radio frequencies broadcast from NIST's Colorado Atomic Clock (only functions in North America) LARGE DISPLAY: The large, 14-inch panoramic display and the sleek, contemporary design make this beautiful clock suitable for a home, office, or gym, fitting perfectly above flat screens, doorways, or within thin shelving units MULTIPLE MODES: Choose from three different displays: AM/PM or 24-hour format; the month, weekday, and date; or the indoor room temperature in Celsius or Fahrenheit, plus humidity. Language can be displayed in English, French or Spanish EIGHT TIME ZONES: This clock includes all eight North American time zones. Choose from Pacific, Mountain, Central, Eastern, Atlantic, Newfoundland, Alaska, and Hawaii standard time MARATHON QUALITY: A family company that has been producing timing instruments for over 80 years. Our uncompromising quest for technical excellence allows us to produce the most advanced clock systems with the experience that our long tradition offers BATTERY POWERED CONVENIENCE: Operates on two AA batteries which are included with your purchase, allowing for easy installation without the need for electrical outlets or complicated wiring Atomic LCD Wall Clock w/Full Weekdays, Temp, Black