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<a name="time_zone"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle">Class time_zone</span></h2>
<p>boost::local_time::time_zone &#8212; A real time zone. </p>
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<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
<span class="bold"><strong>class</strong></span> time_zone {
<span class="bold"><strong>public</strong></span>:
  <span class="emphasis"><em>// types</em></span>
  <span class="bold"><strong>typedef</strong></span> boost::posix_time::time_duration time_duration_type;
  <span class="bold"><strong>typedef</strong></span> time_zone_base                   base_type;         
  <span class="bold"><strong>typedef</strong></span> base_type::string_type           string_type;       
  <span class="bold"><strong>typedef</strong></span> base_type::stringstream_type     stringstream_type; 

  <span class="emphasis"><em>// <a href="time_zone.html#time_zoneconstruct-copy-destruct">construct/copy/destruct</a></em></span>
  <a href="time_zone.html#id1000445-bb">time_zone</a>(<span class="bold"><strong>const</strong></span> time_zone_names &amp;, <span class="bold"><strong>const</strong></span> time_duration_type &amp;, 
            <span class="bold"><strong>const</strong></span> dst_adjustment_offsets &amp;, 
            boost::shared_ptr&lt; dst_calc_rule &gt;);
  <a href="time_zone.html#id1111578-bb">~time_zone</a>();

  <span class="emphasis"><em>// <a href="time_zone.html#id794388-bb">public member functions</a></em></span>
  <span class="type"><span class="bold"><strong>virtual</strong></span> std::string</span> <a href="time_zone.html#id794394-bb">dst_zone_abbrev</a>() <span class="bold"><strong>const</strong></span>;
  <span class="type"><span class="bold"><strong>virtual</strong></span> std::string</span> <a href="time_zone.html#id1113822-bb">std_zone_abbrev</a>() <span class="bold"><strong>const</strong></span>;
  <span class="type"><span class="bold"><strong>virtual</strong></span> std::string</span> <a href="time_zone.html#id1113835-bb">dst_zone_name</a>() <span class="bold"><strong>const</strong></span>;
  <span class="type"><span class="bold"><strong>virtual</strong></span> std::string</span> <a href="time_zone.html#id872452-bb">std_zone_name</a>() <span class="bold"><strong>const</strong></span>;
  <span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>bool</strong></span></span> <a href="time_zone.html#id872464-bb">has_dst</a>() <span class="bold"><strong>const</strong></span>;
  <span class="type"><span class="bold"><strong>virtual</strong></span> posix_time::ptime</span> <a href="time_zone.html#id901740-bb">dst_local_start_time</a>(gregorian::greg_year) <span class="bold"><strong>const</strong></span>;
  <span class="type"><span class="bold"><strong>virtual</strong></span> posix_time::ptime</span> <a href="time_zone.html#id999583-bb">dst_local_end_time</a>(gregorian::greg_year) <span class="bold"><strong>const</strong></span>;
  <span class="type"><span class="bold"><strong>virtual</strong></span> time_duration_type</span> <a href="time_zone.html#id932109-bb">base_utc_offset</a>() <span class="bold"><strong>const</strong></span>;
  <span class="type"><span class="bold"><strong>virtual</strong></span> time_duration_type</span> <a href="time_zone.html#id928701-bb">dst_offset</a>() <span class="bold"><strong>const</strong></span>;
  <span class="type"><span class="bold"><strong>virtual</strong></span> string_type</span> <a href="time_zone.html#id1074729-bb">to_posix_string</a>() <span class="bold"><strong>const</strong></span>;
};</pre></div>
<div class="refsect1" lang="en">
<a name="id1185734"></a><h2>Description</h2>
<div class="refsect2" lang="en">
<a name="id1185738"></a><h3>
<a name="time_zoneconstruct-copy-destruct"></a><code class="computeroutput">time_zone</code> construct/copy/destruct</h3>
<div class="orderedlist"><ol type="1">
<li><pre class="literallayout"><a name="id1000445-bb"></a>time_zone(<span class="bold"><strong>const</strong></span> time_zone_names &amp; zone_names, 
          <span class="bold"><strong>const</strong></span> time_duration_type &amp; base_utc_offset, 
          <span class="bold"><strong>const</strong></span> dst_adjustment_offsets &amp; dst_offset, 
          boost::shared_ptr&lt; dst_calc_rule &gt; calc_rule);</pre></li>
<li><pre class="literallayout"><a name="id1111578-bb"></a>~time_zone();</pre></li>
</ol></div>
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<div class="refsect2" lang="en">
<a name="id1185806"></a><h3>
<a name="id794388-bb"></a><code class="computeroutput">time_zone</code> public member functions</h3>
<div class="orderedlist"><ol type="1">
<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> std::string</span> <a name="id794394-bb"></a>dst_zone_abbrev() <span class="bold"><strong>const</strong></span>;</pre></li>
<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> std::string</span> <a name="id1113822-bb"></a>std_zone_abbrev() <span class="bold"><strong>const</strong></span>;</pre></li>
<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> std::string</span> <a name="id1113835-bb"></a>dst_zone_name() <span class="bold"><strong>const</strong></span>;</pre></li>
<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> std::string</span> <a name="id872452-bb"></a>std_zone_name() <span class="bold"><strong>const</strong></span>;</pre></li>
<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>bool</strong></span></span> <a name="id872464-bb"></a>has_dst() <span class="bold"><strong>const</strong></span>;</pre></li>
<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> posix_time::ptime</span> <a name="id901740-bb"></a>dst_local_start_time(gregorian::greg_year y) <span class="bold"><strong>const</strong></span>;</pre></li>
<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> posix_time::ptime</span> <a name="id999583-bb"></a>dst_local_end_time(gregorian::greg_year y) <span class="bold"><strong>const</strong></span>;</pre></li>
<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> time_duration_type</span> <a name="id932109-bb"></a>base_utc_offset() <span class="bold"><strong>const</strong></span>;</pre></li>
<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> time_duration_type</span> <a name="id928701-bb"></a>dst_offset() <span class="bold"><strong>const</strong></span>;</pre></li>
<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> string_type</span> <a name="id1074729-bb"></a>to_posix_string() <span class="bold"><strong>const</strong></span>;</pre></li>
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