Today's additional 'leap second' could crash computer programs
The "leap second" is needed to account for a discrepancy between Earth's rotation and the atomic clock, according to the International Earth Rotation and Reference Systems. In the United States, the extra second will be added at 8 p.m. Eastern time.
Leap second’: Why June 30 will have one extra second
On June 30, the world will receive a gift of time: a single, extra second known as a “leap second.” At that moment, the official atomic clocks that keep Universal Coordinated Time will mark the time as 23h 59m 59s, followed by the leap second 23h 59m 60s.
The challenge of building a better atomic clock and why it matters
to help assess and improve upon its accuracy to make it an even more accurate atomic clock. Credit: National Physical Laboratory, United Kingdom Prior to the mid-18th century, it was tough to be a sailor. If your voyage required east-west travel ...
Equity SkyScan Atomic Projection Clock 31269 Alarm Clock
This clock is supposed to set itself, but we had trouble getting it to work, and also found setting the alarm difficult. On the plus side, it features an indoor thermometer, and testers like the projector. Also has battery backup. equitytime.com.
Sangean AM/FM/Aux Atomic Clock Radio RCR-22
sangean.com. Oregon Scientific TimeLight Projection Clock with... Hammacher Schlemmer The Authentic Sound Oasis... Emerson SmartSet 3-Color Projection Alarm Clock... HoMedics SoundSpa Premier SS-5000 Alarm Clock...
Travel & Folding Clocks Suppliers
Distributor of world time, travel & folding clocks. Types of clocks include travel alarm & omicron slim clocks ... wireless, wall, time zone, atomic, educational & custom advertising & message clocks. Timers & stopwatches are also available.
GearNews - ACCressi Newton Computer
The Newton has a case diameter of 48mm with four push-buttons accessing the functions including time, calendar, stopwatch and alarm clock in watch mode, plus gauge, air and nitrox in dive mode. The computer also features planning and memory functions for ...