Atomic Clock Calibration:

Invented in 1955 by Louis Essen, the Atomic Clock is the ultimate in timekeeping accuracy. Basing seconds on 9,192,631,770 periods of radiation in a Caesium 133 atom the Atomic Clock achieves accuracy to within +/- 1 second variance every 60 million years.The MARATHON Atomic Travel Alarm Clock uses specialized radio frequencies to calibrate to signals broadcasted by Atomic Clocks throughout the world. Once calibration is achieved, the MARATHON Atomic Travel Alarm Clock will self adjust to the time provided by the atomic clock, ensuring the highest standard of accurate timekeeping.

6 Time Zones With DST On/Off:

The MARATHON Atomic Travel Alarm Clock can be set to 6 time zones: Pacific Time, Mountain Time, Central Time, Eastern Time, Atlantic (Caribbean)Time, as well as Newfoundland Time. Newfoundland Time is a special time zone due to the distinct location of the Province of Newfoundland. While most standard travel clocks simply cover Pacific Time, Mountain Time, Central Time, and Eastern Time, Marathon�s Atomic Travel Alarm Clock also encompasses Atlantic (Caribbean) Time as well as Newfoundland Time to ensure our superior quality product will be useful to as many people as possible.The MARATHON Atomic Travel Alarm Clock also includes an option to turn on or off automatic Daylight Savings Time (DST) to accompany users in certain provinces or states that opt out of the Daylight Savings Time Program.

Multifunction Display:

The MARATHON Atomic Travel Alarm Clock comes in at a compact 3.25� W X 0.5� D X 2.75� H making it a perfect travel companion. While keeping size compact, Marathon has not compromised any functionality of the Atomic Travel Alarm Clock, displaying time in 12 or 24 hour formats, as well as an indoor temperature display with options for Fahrenheit or Celsius, and a calendar display for day, date and month. The MARATHON Atomic Travel Alarm Clock also can be set in 5 different languages, English, French, German, Spanish, and Italian.

Automatic Backlight:

Included with the MARATHON Atomic Travel Alarm Clock is a special automatic backlight function. Marathon�s Atomic Travel Alarm Clock uses a built in light sensor to detect if the clock has been placed in a dark environment and will respond by auto illuminating the display to provide legibility for the user with no input required, the backlight can also be manually operated. The MARATHON Atomic Travel Clock includes 2 �AAA� batteries and is low power consumption to ensure maximum lifespan.