ADDER 2112T User Manual page 35

Time & date configuration
This page allows you to configure all aspects relating to time and date within the unit.
Use NTP
When this option is selected, the ALIF 2112T will synchronise its internal clocks
using information from the (Network Time Protocol) server listed in the NTP
Server IP address field.
NTP Server IP address
Optionally enter the IP address for a known Network Time Protocol server.
Set Time from NTP Server
Click to immediately use the time and date information from the listed NTP server.
To get here
1 Using VNC viewer or a browser, log on as the 'admin' user.
2 Click the 'Configure' button in the top right corner.
3 Click the 'Time & Date Configuration' option.
Timezone specifier
Optionally enter a recognised timezone specifier related to the current position
of the ALIF 2112T unit. When an NTP server is used, the specifier will be used to
provide the correct real time.
The timezone specifier takes the following form:
std offset dst [offset],start[/time],end[/time]
std offset
The and specify the standard time zone, such as GMT and 0, or CET
and -1, or EST and 5, respectively.
dst [offset]
The string and specify the name and offset for the corresponding
offset
Daylight Saving Time zone; if the
of standard time.
The remainder of the specification describes when Daylight Saving Time is in
start
effect. The field is when Daylight Saving Time goes into effect and the
end
field is when the change is made back to standard time. The most common
format used for the daylight saving time is: M
m specifies the month and must be between 1 and 12. The day
Where:
must be between 0 (Sunday) and 6. The week
week 1 is the first week in which day
day in the month.
time
The fields specify when, in the local time currently in effect, the change to
the other time occurs. If omitted, the default is 02:00:00.
Typical examples are:
UK:
Central Europe:
US Eastern:
US Pacific:
For further details
• For details of timezone specifier formats, please refer to:
http://www.gnu.org/software/libc/manual/html_node/TZ-Variable.
html
• For details of the Network Time Protocol (main RFC number: 1305; the SNTP
subset used as the basis for the ALIF 2112T: 4330)
http://www.ietf.org/rfc.html
is omitted, it defaults to one hour ahead
m w d
. .
d
w must be between 1 and 5;
d occurs, and week 5 specifies the last d
GMT0BST,M3.5.0/1,M10.5.0/2
CET-1CEST,M3.5.0/2,M10.5.0/3
EST5EDT,M3.2.0/2,M11.1.0/2
PST5PDT,M3.2.0/2,M11.1.0/2
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