The logging files generated by the product are stored in the
Strategy Narrowcast Server Delivery Engine folder. These files have names
that begin with 'DELog' followed by a timestamp, and the suffix 'UTC.TXT' (where
UTC stands for Universal Coordinated Time).
Example: DELog 2001-08-06 13_29_51 UTC.TXT
When administrators review these log files, a timestamp similar to
is displayed at the beginning of each line indicating when
it was written. The 'Z' at the end of the timestamp indicates the timestamp is in Zulu
time, which may be different from the machine's system time.
Zulu (short for "Zulu time") is used in the military and in navigation
generally as a term for Universal Coordinated Time.
NOTE: Formerly called Greenwich Mean Time,Universal Coordinated Time
is also called Universal Time Coordinated (UTC) or Coordinated Universal Time (but
always abbreviated UTC).
In military shorthand, the letter Z follows a time expressed in
Greenwich Time. Greenwich Time, now called Universal Coordinated Time, is the time at
longitude 0 degrees 0 minutes - the prime meridian or longitudinal line that separates
East from West in the world geographical coordinate system. This line of longitude is
based on the location of the British Naval Observatory in Greenwich, England, near
London. 'Zulu' is the radio transmission articulation for the letter Z.
Traditionally, ship and airplane navigation is conducted using Zulu
time. Zulu time is usually expressed in terms of a 24-hour clock using the Gregorian
calendar time divisions of hours and minutes and can be converted into a 12-hour clock (a.m. and p.m.).
The purpose of having all log files time stamped using UTC is to
prevent having log files in different time zones and timestamps if the Strategy
Narrowcast Server system has Execution Engines on different geographical zones.
Coordinated Universal Time (abbreviated as UTC, and therefore often
spelled out as Universal Time Coordinated and sometimes as Universal Coordinated Time)
is the standard time common to every place in the world. Formerly and still widely
called Greenwich Mean Time (GMT) and also World Time, UTC nominally reflects the mean
solar time along the Earth's prime meridian. (The prime meridian is 0° longitude in
the 360 lines of longitude on Earth. There are 179 meridians toward the East and 179
toward the West. The 180th meridian is also called the International Date Line.) The
prime meridian is arbitrarily based on the meridian that runs through the Greenwich
Observatory outside of London, where the present system originated. The UTC is based
on an atomic clock to which adjustments of a second (called a leap second) are
sometimes made to allow for variations in the solar cycle.
UTC was defined by the International Radio Consultative Committee
(CCIR), a predecessor organization of the ITU-TS, and is maintained by the Bureau
International des Poids et Mesures (BIPM) or International Bureau of Weight and
Measures.
Starting in Strategy Narrowcast Server 8.1.1 the user is able to determine the timezone that he wants the DELogs to use. For more information refer to the following technotes:
