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<h1 class="topictitle1">Date and time system values: Time adjustment</h1>
<div><p>Identifies the application to use for time maintenance. (QTIMADJ)</p>
<p><span class="uicontrol">Time adjustment</span>, also known as <span class="uicontrol">QTIMADJ</span>,
is a member of the date and time category of i5/OS™ system values. You can use this system
value to identify the software to use to adjust the system clock to keep it
synchronized with an external time source. To learn more, keep reading.</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><thead align="left"><tr><th colspan="2" valign="top" class="firstcol" id="d0e37">Quick reference</th>
</tr>
</thead>
<tbody><tr><th valign="top" class="firstcol" id="d0e41" headers="d0e37 ">Location</th>
<td valign="top" headers="d0e41 d0e37 ">In iSeries™ Navigator,
select your system, <span class="menucascade"><span class="uicontrol"></span> &gt; <span class="uicontrol">Configuration
and Service</span> &gt; <span class="uicontrol">Time Management</span> &gt; <span class="uicontrol">Time
Adjustment</span></span></td>
</tr>
<tr><th valign="top" class="firstcol" id="d0e57" headers="d0e37 ">Special authority</th>
<td valign="top" headers="d0e57 d0e37 ">None</td>
</tr>
<tr><th valign="top" class="firstcol" id="d0e62" headers="d0e37 ">Default value</th>
<td valign="top" headers="d0e62 d0e37 ">No adjustment software is specified</td>
</tr>
<tr><th valign="top" class="firstcol" id="d0e67" headers="d0e37 ">Changes take effect</th>
<td valign="top" headers="d0e67 d0e37 ">Immediately</td>
</tr>
<tr><th valign="top" class="firstcol" id="d0e72" headers="d0e37 ">Lockable</th>
<td valign="top" headers="d0e72 d0e37 ">No</td>
</tr>
</tbody>
</table>
</div>
<div class="section"><h4 class="sectiontitle">What can I do with this system value?</h4><p>Use the time
adjustment (QTIMADJ) system value to identify the software to use to adjust
the system clock to keep it synchronized with an external time source. The
system does not enforce the software specified; it only identifies the software
to use. This value should be maintained by the time adjustment software and
is intended as an aid to prevent having multiple time adjustment applications
conflict with each other. There are no checks performed by the system to verify
this value or that this software is or is not performing time adjustments.</p>
<p>Time
adjustment software should check this system value prior to starting. If this
system value has an identifier for other time adjustment software, then the
software being started should notify the user of this potential conflict and
confirm that this time adjustment software should be started. When there is
not an identifier associated with this system value, the software should update
this system value to identify that it is now responsible for adjusting the
system clock. Time adjustment software should check this system value again
prior to ending. This system value should be set to the value None (*NONE)
only if the current value identifies this time adjustment software that is
ending.</p>
<p>You can work with time adjustment system value in iSeries Navigator
by expanding <span class="menucascade"><span class="uicontrol">Configuration and Service</span> &gt; <span class="uicontrol">System Values</span> &gt; <span class="uicontrol">Date and Time</span> &gt; <span class="uicontrol">Configuration
and Service</span></span>. To work with the time adjustment function,
expand <span class="menucascade"><span class="uicontrol">Time Management</span> &gt; <span class="uicontrol">Time
Adjustment</span></span>.</p>
</div>
<div class="section"><h4 class="sectiontitle">Where can I get more information about this system value?</h4><p>To
learn more, go to the date and time system values overview topic. If you are
looking for a specific system value or category of system values, try using
the i5/OS system
value finder.</p>
<p>In addition, go to Time management to learn how to use
the Time Management function of iSeries Navigator to work with this system
value. The Time Management function allows you to identify a time zone for
the system to use. You can also specify to use a time maintenance application
to keep the system time synchronized with an external time source. </p>
</div>
</div>
<div><div class="relconcepts"><strong>Related concepts</strong><br />
<div><a href="rzakz1.htm" title="System values are pieces of information that affect the system operating environment. System values are not objects on the system. Rather, system values contain control information for the operation of certain parts of the system.">System values</a></div>
<div><a href="rzakzdateoverview.htm" title="Use i5/OS date and time system values to control the system's date, time, and time zone information.">System values: Date and time overview</a></div>
<div><a href="../rzati/rzatitimemainapp.htm">Time adjustment</a></div>
<div><a href="../rzati/rzatikickoff.htm">Time management</a></div>
<div><a href="rzakzmanage.htm" title="As an administrator, you can perform many tasks to help you manage system values. Select this topic to learn how to save, configure, and lock system values.">Manage system values</a></div>
</div>
<div class="relinfo"><strong>Related information</strong><br />
<div><a href="rzakzfinder.htm">System value finder</a></div>
</div>
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