TBLinux:Changing the Time Zone

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The time zone of a Tmedia unit, such as the TMG800 or TMG3200, is configured on the Linux host using the '''<code>tzselect</code>''' command.
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The time zone of a Tmedia unit, such as the TMG800 or TMG3200, is configured on the Linux host using the '''<code>tzselect</code>''' command. <br> <br> '''The following is provided as a sample of how to configure a time zone:'''<br> NOTE: User-typed parameters are shown in red.  
<br>
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<br>
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{| border="1"
'''The following is provided as a sample of how to configure a time zone:'''<br>
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NOTE: User-typed parameters are shown in red.
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<code>[root@TB005375 ]# tzselect<br> Please identify a location so that time zone rules can be set correctly.<br> Please select a continent<br> 1) Africa<br> 2) Americas<br> .<br> .<br> .<br> 10) None - I want to specify the time zone using the Posix TZ format.<br> #?<span style="color:red">2</span><br> <br> Please select a country.<br> 1) Anguilla<br> .<br> .<br> .<br> 10) Canada<br> .<br> .<br> .<br> 51) Virgin Islands (US)<br> #?<span style="color:red">10</span><br> <br> Please select one of the time zone regions.<br> 1) Newfoundland Time, including SE Labrador<br> .<br> .<br> .<br> 7) Eastern Time - Quebec - most locations<br> .<br> .<br> .<br> 27) Pacific Time - north Yukon<br> #?<span style="color:red">7</span><br> <br> The following information has been given:<br> Canada<br> Eastern Time - Quebec - most locations<br> <br> Therefore TZ= ‘America/Montreal’ will be used.<br> Local time is now: Wed Aug 19 08:49:01 EDT 2009.<br> Universal time is now: Wed Aug 19 08:49:01 UDT 2009.<br> Is the above information OK?<br> 1) Yes<br> 2) No<br> #?<span style="color:red">1</span><br> <br> You can make this change permanent for yourself by appending the line<br> TZ= ‘America/Montreal’; export TZ<br> to the file ‘.profile’ in your home directory; then log out and log in again.<br> <br> Here is the TZ value again, this time on standard output so that you<br> can use the /usr/bin/tzselect command in the shell script<br> America/Montreal<br> [root@TB005373 ]#<br> </code>
  
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<code>
 
[root@TB005375 ]# tzselect<br>
 
Please identify a location so that time zone rules can be set correctly.<br>
 
Please select a continent<br>
 
1) Africa<br>
 
2) Americas<br>
 
.<br>
 
.<br>
 
.<br>
 
10) None - I want to specify the time zone using the Posix TZ format.<br>
 
&#35;?<span style="color:red">2</span><br>
 
<br>
 
Please select a country.<br>
 
1) Anguilla<br>
 
.<br>
 
.<br>
 
.<br>
 
10) Canada<br>
 
.<br>
 
.<br>
 
.<br>
 
51) Virgin Islands (US)<br>
 
&#35;?<span style="color:red">10</span><br>
 
<br>
 
Please select one of the time zone regions.<br>
 
1) Newfoundland Time, including SE Labrador<br>
 
.<br>
 
.<br>
 
.<br>
 
7) Eastern Time - Quebec - most locations<br>
 
.<br>
 
.<br>
 
.<br>
 
27) Pacific Time - north Yukon<br>
 
&#35;?<span style="color:red">7</span><br>
 
<br>
 
The following information has been given:<br>
 
Canada<br>
 
Eastern Time - Quebec - most locations<br>
 
<br>
 
Therefore TZ= ‘America/Montreal’ will be used.<br>
 
Local time is now: Wed Aug 19 08:49:01 EDT 2009.<br>
 
Universal time is now: Wed Aug 19 08:49:01 UDT 2009.<br>
 
Is the above information OK?<br>
 
1) Yes<br>
 
2) No<br>
 
&#35;?<span style="color:red">1</span><br>
 
<br>
 
You can make this change permanent for yourself by appending the line<br>
 
TZ= ‘America/Montreal’; export TZ<br>
 
to the file ‘.profile’ in your home directory; then log out and log in again.<br>
 
<br>
 
Here is the TZ value again, this time on standard output so that you<br>
 
can use the /usr/bin/tzselect command in the shell script<br>
 
America/Montreal<br>
 
[root@TB005373 ]#<br>
 
</code>
 
 
|}
 
|}
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The above set the timezone for the bash shell only. To configure the time system-wide, manually change the file /etc/localtime to point to the right timezone.<br>
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$ rm /etc/localtime
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$ ln -s /usr/share/zoneinfo/America/Fortaleza /etc/localtime
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You can check for the correct timezone name inside that directory "/usr/share/zoneinfo/../..".
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'''You need to restart Toolpack for it to apply the changes.''' E.g. Timestamps in toolpack logs.

Revision as of 21:23, 20 September 2011

The time zone of a Tmedia unit, such as the TMG800 or TMG3200, is configured on the Linux host using the tzselect command.

The following is provided as a sample of how to configure a time zone:
NOTE: User-typed parameters are shown in red.

[root@TB005375 ]# tzselect
Please identify a location so that time zone rules can be set correctly.
Please select a continent
1) Africa
2) Americas
.
.
.
10) None - I want to specify the time zone using the Posix TZ format.
#?2

Please select a country.
1) Anguilla
.
.
.
10) Canada
.
.
.
51) Virgin Islands (US)
#?10

Please select one of the time zone regions.
1) Newfoundland Time, including SE Labrador
.
.
.
7) Eastern Time - Quebec - most locations
.
.
.
27) Pacific Time - north Yukon
#?7

The following information has been given:
Canada
Eastern Time - Quebec - most locations

Therefore TZ= ‘America/Montreal’ will be used.
Local time is now: Wed Aug 19 08:49:01 EDT 2009.
Universal time is now: Wed Aug 19 08:49:01 UDT 2009.
Is the above information OK?
1) Yes
2) No
#?1

You can make this change permanent for yourself by appending the line
TZ= ‘America/Montreal’; export TZ
to the file ‘.profile’ in your home directory; then log out and log in again.

Here is the TZ value again, this time on standard output so that you
can use the /usr/bin/tzselect command in the shell script
America/Montreal
[root@TB005373 ]#

The above set the timezone for the bash shell only. To configure the time system-wide, manually change the file /etc/localtime to point to the right timezone.

$ rm /etc/localtime

$ ln -s /usr/share/zoneinfo/America/Fortaleza /etc/localtime

You can check for the correct timezone name inside that directory "/usr/share/zoneinfo/../..".

You need to restart Toolpack for it to apply the changes. E.g. Timestamps in toolpack logs.

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