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<div class="subTitle">org.apache.orc.impl</div>
<h2 title="Class DateUtils" class="title">Class DateUtils</h2>
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<li>org.apache.orc.impl.DateUtils</li>
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<pre>public class <span class="typeNameLabel">DateUtils</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block">Conversion utilities from the hybrid Julian/Gregorian calendar to/from the
 proleptic Gregorian.
 <p>
 The semantics here are to hold the string representation constant and change
 the epoch offset rather than holding the instant in time constant and change
 the string representation.
 <p>
 These utilities will be fast for the common case (&gt; 1582 AD), but slow
 for old dates.</div>
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<h3>Method Summary</h3>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/DateUtils.html#convertDate-int-boolean-boolean-">convertDate</a></span>(int&nbsp;original,
           boolean&nbsp;fromProleptic,
           boolean&nbsp;toProleptic)</code>&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/DateUtils.html#convertDateToHybrid-int-">convertDateToHybrid</a></span>(int&nbsp;proleptic)</code>
<div class="block">Convert an epoch day from the proleptic Gregorian calendar to the hybrid
 Julian/Gregorian.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/DateUtils.html#convertDateToProleptic-int-">convertDateToProleptic</a></span>(int&nbsp;hybrid)</code>
<div class="block">Convert an epoch day from the hybrid Julian/Gregorian calendar to the
 proleptic Gregorian.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/DateUtils.html#convertTime-long-boolean-boolean-boolean-">convertTime</a></span>(long&nbsp;original,
           boolean&nbsp;fromProleptic,
           boolean&nbsp;toProleptic,
           boolean&nbsp;useUtc)</code>&nbsp;</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/DateUtils.html#convertTimeToHybrid-long-boolean-">convertTimeToHybrid</a></span>(long&nbsp;proleptic,
                   boolean&nbsp;useUtc)</code>
<div class="block">Convert epoch millis from the proleptic Gregorian calendar to the hybrid
 Julian/Gregorian.</div>
</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/DateUtils.html#convertTimeToProleptic-long-boolean-">convertTimeToProleptic</a></span>(long&nbsp;hybrid,
                      boolean&nbsp;useUtc)</code>
<div class="block">Convert epoch millis from the hybrid Julian/Gregorian calendar to the
 proleptic Gregorian.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html?is-external=true" title="class or interface in java.time.format">DateTimeFormatter</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/DateUtils.html#getTimeFormat-boolean-boolean-">getTimeFormat</a></span>(boolean&nbsp;useProleptic,
             boolean&nbsp;useUtc)</code>&nbsp;</td>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/DateUtils.html#parseDate-java.lang.String-boolean-">parseDate</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;date,
         boolean&nbsp;fromProleptic)</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/DateUtils.html#parseTime-java.lang.String-boolean-boolean-">parseTime</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;date,
         boolean&nbsp;fromProleptic,
         boolean&nbsp;useUtc)</code>&nbsp;</td>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/DateUtils.html#printDate-int-boolean-">printDate</a></span>(int&nbsp;date,
         boolean&nbsp;fromProleptic)</code>&nbsp;</td>
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<tr id="i10" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/DateUtils.html#printTime-long-boolean-boolean-">printTime</a></span>(long&nbsp;millis,
         boolean&nbsp;fromProleptic,
         boolean&nbsp;useUtc)</code>&nbsp;</td>
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<h4>convertDateToProleptic</h4>
<pre>public static&nbsp;int&nbsp;convertDateToProleptic(int&nbsp;hybrid)</pre>
<div class="block">Convert an epoch day from the hybrid Julian/Gregorian calendar to the
 proleptic Gregorian.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>hybrid</code> - day of epoch in the hybrid Julian/Gregorian</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>day of epoch in the proleptic Gregorian</dd>
</dl>
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<pre>public static&nbsp;int&nbsp;convertDateToHybrid(int&nbsp;proleptic)</pre>
<div class="block">Convert an epoch day from the proleptic Gregorian calendar to the hybrid
 Julian/Gregorian.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>proleptic</code> - day of epoch in the proleptic Gregorian</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>day of epoch in the hybrid Julian/Gregorian</dd>
</dl>
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<pre>public static&nbsp;long&nbsp;convertTimeToProleptic(long&nbsp;hybrid,
                                          boolean&nbsp;useUtc)</pre>
<div class="block">Convert epoch millis from the hybrid Julian/Gregorian calendar to the
 proleptic Gregorian.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>hybrid</code> - millis of epoch in the hybrid Julian/Gregorian</dd>
<dd><code>useUtc</code> - use UTC instead of local</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>millis of epoch in the proleptic Gregorian</dd>
</dl>
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<pre>public static&nbsp;long&nbsp;convertTimeToHybrid(long&nbsp;proleptic,
                                       boolean&nbsp;useUtc)</pre>
<div class="block">Convert epoch millis from the proleptic Gregorian calendar to the hybrid
 Julian/Gregorian.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>proleptic</code> - millis of epoch in the proleptic Gregorian</dd>
<dd><code>useUtc</code> - use UTC instead of local</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>millis of epoch in the hybrid Julian/Gregorian</dd>
</dl>
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<pre>public static&nbsp;int&nbsp;convertDate(int&nbsp;original,
                              boolean&nbsp;fromProleptic,
                              boolean&nbsp;toProleptic)</pre>
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<pre>public static&nbsp;long&nbsp;convertTime(long&nbsp;original,
                               boolean&nbsp;fromProleptic,
                               boolean&nbsp;toProleptic,
                               boolean&nbsp;useUtc)</pre>
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<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&nbsp;parseDate(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;date,
                                boolean&nbsp;fromProleptic)</pre>
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<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;printDate(int&nbsp;date,
                               boolean&nbsp;fromProleptic)</pre>
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<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html?is-external=true" title="class or interface in java.time.format">DateTimeFormatter</a>&nbsp;getTimeFormat(boolean&nbsp;useProleptic,
                                              boolean&nbsp;useUtc)</pre>
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<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>&nbsp;parseTime(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;date,
                             boolean&nbsp;fromProleptic,
                             boolean&nbsp;useUtc)</pre>
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<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;printTime(long&nbsp;millis,
                               boolean&nbsp;fromProleptic,
                               boolean&nbsp;useUtc)</pre>
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