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<a name="id-1.3.14.15.3.23.7.4"></a><h2>Description</h2>
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<a name="id-1_3_14_15_3_23_2_1_4_5-bb"></a><code class="computeroutput">null_dst_rules</code> public static functions</h3>
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<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">time_is_dst_result</span> 
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