diff --git a/language/oop5/constants.xml b/language/oop5/constants.xml
index 8da5f2df0..0bdcc2d8e 100644
--- a/language/oop5/constants.xml
+++ b/language/oop5/constants.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- ES-Revision: 922b4b5aeb327d78ea1bb4b932e5db2e9a03ffc5 Maintainer: PhilDaiguille Status: ready -->
+<!-- EN-Revision: 922b4b5aeb327d78ea1bb4b932e5db2e9a03ffc5 Maintainer: PhilDaiguille Status: ready -->
 <!-- Reviewed: no -->
 <sect1 xml:id="language.oop5.constants" xmlns="http://docbook.org/ns/docbook">
  <title>Constantes de clase</title>
diff --git a/language/operators/increment.xml b/language/operators/increment.xml
index 4a3e023b8..d04f8ea95 100644
--- a/language/operators/increment.xml
+++ b/language/operators/increment.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- ES-Revision: 16934048f79c6e117cd16a23c09c1b2ea502e284 Maintainer: PhilDaiguille Status: ready -->
+<!-- EN-Revision: 16934048f79c6e117cd16a23c09c1b2ea502e284 Maintainer: PhilDaiguille Status: ready -->
 <!-- Reviewed: no -->
 <sect1 xml:id="language.operators.increment">
  <title>Operadores de incremento y decremento</title>
diff --git a/reference/datetime/datetimeinterface/serialize.xml b/reference/datetime/datetimeinterface/serialize.xml
new file mode 100644
index 000000000..4e3231764
--- /dev/null
+++ b/reference/datetime/datetimeinterface/serialize.xml
@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- EN-Revision: 053ae3f6f54cba66a12f85d2eebe32863c6f221e Maintainer: PhilDaiguille Status: ready -->
+<!-- Reviewed: no -->
+<refentry xml:id="datetime.serialize" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
+ <refnamediv>
+  <refname>DateTime::__serialize</refname>
+  <refname>DateTimeImmutable::__serialize</refname>
+  <refname>DateTimeInterface::__serialize</refname>
+  <refpurpose>Deserializa un DateTime</refpurpose>
+ </refnamediv>
+
+ <refsect1 role="description">
+  &reftitle.description;
+  <methodsynopsis role="DateTime">
+   <modifier>public</modifier> <type>array</type><methodname>DateTime::__serialize</methodname>
+   <void/>
+  </methodsynopsis>
+  <methodsynopsis role="DateTimeImmutable">
+   <modifier>public</modifier> <type>array</type><methodname>DateTimeImmutable::__serialize</methodname>
+   <void/>
+  </methodsynopsis>
+  <methodsynopsis role="DateTimeInterface">
+   <modifier>public</modifier> <type>array</type><methodname>DateTimeInterface::__serialize</methodname>
+   <void/>
+  </methodsynopsis>
+  <para>
+   El gestor <link linkend="object.serialize">__serialize()</link>.
+  </para>
+ </refsect1>
+
+ <refsect1 role="parameters">
+  &reftitle.parameters;
+  &no.function.parameters;
+ </refsect1>
+
+ <refsect1 role="returnvalues">
+  &reftitle.returnvalues;
+  <para>
+   La representación serializada del objeto
+   <classname>DateTime</classname>.
+  </para>
+ </refsect1>
+
+ <refsect1 role="examples">
+  &reftitle.examples;
+  <example>
+   <title>Ejemplo de <function>DateTime::serialize</function></title>
+   <programlisting role="php">
+<![CDATA[
+<?php
+$date = new DateTime('2025-03-27');
+var_dump(serialize($date));
+?>
+]]>
+   </programlisting>
+   &examples.outputs;
+   <screen>
+<![CDATA[
+string(114) "O:8:"DateTime":3:{s:4:"date";s:26:"2025-03-27 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}"
+]]>
+   </screen>
+  </example>
+ </refsect1>
+
+ <refsect1 role="seealso">
+  &reftitle.seealso;
+  <simplelist>
+   <member><methodname>DateTime::__unserialize</methodname></member>
+  </simplelist>
+ </refsect1>
+</refentry>
+<!-- Keep this comment at the end of the file
+Local variables:
+mode: sgml
+sgml-omittag:t
+sgml-shorttag:t
+sgml-minimize-attributes:nil
+sgml-always-quote-attributes:t
+sgml-indent-step:1
+sgml-indent-data:t
+indent-tabs-mode:nil
+sgml-parent-document:nil
+sgml-default-dtd-file:"~/.phpdoc/manual.ced"
+sgml-exposed-tags:nil
+sgml-local-catalogs:nil
+sgml-local-ecat-files:nil
+End:
+vim600: syn=xml fen fdm=syntax fdl=2 si
+vim: et tw=78 syn=sgml
+vi: ts=1 sw=1
+-->
diff --git a/reference/datetime/datetimeinterface/unserialize.xml b/reference/datetime/datetimeinterface/unserialize.xml
new file mode 100644
index 000000000..8b78cdf25
--- /dev/null
+++ b/reference/datetime/datetimeinterface/unserialize.xml
@@ -0,0 +1,106 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- EN-Revision: 053ae3f6f54cba66a12f85d2eebe32863c6f221e Maintainer: PhilDaiguille Status: ready -->
+<!-- Reviewed: no -->
+<refentry xml:id="datetime.unserialize" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
+ <refnamediv>
+  <refname>DateTime::__unserialize</refname>
+  <refname>DateTimeImmutable::__unserialize</refname>
+  <refname>DateTimeInterface::__unserialize</refname>
+  <refpurpose>Deserializar un DateTime</refpurpose>
+ </refnamediv>
+
+ <refsect1 role="description">
+  &reftitle.description;
+  <methodsynopsis role="DateTime">
+   <modifier>public</modifier> <type>void</type><methodname>DateTime::__unserialize</methodname>
+   <methodparam><type>array</type><parameter>data</parameter></methodparam>
+  </methodsynopsis>
+  <methodsynopsis role="DateTimeImmutable">
+   <modifier>public</modifier> <type>void</type><methodname>DateTimeImmutable::__unserialize</methodname>
+   <methodparam><type>array</type><parameter>data</parameter></methodparam>
+  </methodsynopsis>
+  <methodsynopsis role="DateTimeInterface">
+   <modifier>public</modifier> <type>void</type><methodname>DateTimeInterface::__unserialize</methodname>
+   <methodparam><type>array</type><parameter>data</parameter></methodparam>
+  </methodsynopsis>
+  <para>
+   El gestor <link linkend="object.unserialize">__unserialize()</link>.
+  </para>
+ </refsect1>
+
+ <refsect1 role="parameters">
+  &reftitle.parameters;
+  <variablelist>
+   <varlistentry>
+    <term><parameter>data</parameter></term>
+    <listitem>
+     <para>
+      El <classname>DateTime</classname> serializado.
+     </para>
+    </listitem>
+   </varlistentry>
+  </variablelist>
+ </refsect1>
+
+ <refsect1 role="returnvalues">
+  &reftitle.returnvalues;
+  <para>
+   El objeto <classname>DateTime</classname>.
+  </para>
+ </refsect1>
+
+ <refsect1 role="examples">
+  &reftitle.examples;
+  <example>
+   <title>Ejemplo de <function>DateTime::unserialize</function></title>
+   <programlisting role="php">
+<![CDATA[
+<?php
+$serializedDate = 'O:8:"DateTime":3:{s:4:"date";s:26:"2025-03-27 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}';
+var_dump(unserialize($serializedDate));
+?>
+]]>
+   </programlisting>
+   &examples.outputs;
+   <screen>
+<![CDATA[
+object(DateTime)#1 (3) {
+  ["date"]=>
+  string(26) "2025-03-27 00:00:00.000000"
+  ["timezone_type"]=>
+  int(3)
+  ["timezone"]=>
+  string(3) "UTC"
+}
+]]>
+   </screen>
+  </example>
+ </refsect1>
+
+ <refsect1 role="seealso">
+  &reftitle.seealso;
+  <simplelist>
+   <member><methodname>DateTime::__serialize</methodname></member>
+  </simplelist>
+ </refsect1>
+</refentry>
+<!-- Keep this comment at the end of the file
+Local variables:
+mode: sgml
+sgml-omittag:t
+sgml-shorttag:t
+sgml-minimize-attributes:nil
+sgml-always-quote-attributes:t
+sgml-indent-step:1
+sgml-indent-data:t
+indent-tabs-mode:nil
+sgml-parent-document:nil
+sgml-default-dtd-file:"~/.phpdoc/manual.ced"
+sgml-exposed-tags:nil
+sgml-local-catalogs:nil
+sgml-local-ecat-files:nil
+End:
+vim600: syn=xml fen fdm=syntax fdl=2 si
+vim: et tw=78 syn=sgml
+vi: ts=1 sw=1
+-->