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8.10.8
GLOBAL TAB
Global settings, those that do not change with format, are set or displayed here.
Unit Time
The time settings in the unit can be observed in Unit Time group box in the global tab. The
current unit’s date, UTC time, and time zone offset are displayed. The abbreviations for
standard and daylight saving time, and whether daylight saving time is observed are also
displayed at this location. All time parameters are saved in the JSD-‐60 and are used in logging
events. The unit’s time stamps are viewed in the Logging tab or Web interface.
Set Time / Date Button
To set the unit’s time and date, the Set Time/Date button is
used to open the Set JSD-‐60 Date and Time window. In the
window, the current UTC time is displayed, as obtained from
the host computer. The JSD-‐60 itself only uses time of day in
logging. Further, all log entries are made in UTC. When
viewed through the GUI, log data includes the time in UTC,
the time at the JSD-‐60 (JSD Time), and the time at the GUI
(GUI Time). The use of these three time zones allows for
simple comparison of device logs, even when the devices are
in multiple time zones. The Date and Time dialog allows
setting of date and time data for the JSD-‐60. Since the JSD-‐60
uses UTC time, the displayed time is UTC. If the system is using an NTP server, you do not need
to set the date and time. If no NTP server is available, set the date and time to the current UTC
time. The bottom portion of the dialog box deals with the date and time at the JSD-‐60 itself.
Set the Time Zone field to the offset from UTC for
standard time
in the time zone where the
JSD-‐60 is located. If daylight saving time (summer time) is observed at the JSD-‐60 location,
check the corresponding checkbox. Note that this checkbox indicates whether daylight saving
time is
ever
observed at this location, not whether it is currently in effect. For example, you
would check the checkbox in California, but uncheck it in Arizona. Fill the next two fields with
the abbreviations for standard time and daylight saving time in the time zone where the JSD-‐60
is located. The daylight saving time abbreviation will not be used if the daylight saving time
observed checkbox is unchecked, but you may want to fill it in anyway. Clicking OK transmits
the data to the JSD-‐60.
US Time Zone
UTC
Offset
Standard Time
Abbreviation
Daylight Saving Time
Abbreviation
Hawaii-‐
Aleutian
-‐10:00
HAST
HADT
Alaska
-‐9:00
AKST
AKDT
Pacific
-‐8:00
PST
PDT