6
accuracy of ten billionths of a second per
day. These physicists have created an
international standard, measuring a second
as 9,192,631,770 vibrations of a Cesium-
133 atom in a vacuum. For more
information please see the NIST website at
www.boulder.nist.gov/timefreq/stations/wwvb.htm.
C. PROGRAMMING
(includes manual time setting)
This section is designed to walk you
through the entire set up procedure. If you
only require setting one section please hold
the “SET” button until the U.S. map flashes
and then press and release the “SET” button
until the section you wish to program
begins flashing.
The Programming Sequence is as follows:
→Time Zone → DST On/OFF → Snooze
Setting → Manual Time Setting (Hour →
Minute) → Manual Date Setting (Year →
Month → Date → Day) → 12/24-hour time
format