diff --git a/reference/datetime/datetime/createfrominterface.xml b/reference/datetime/datetime/createfrominterface.xml
new file mode 100644
index 0000000000..1b39e6446e
--- /dev/null
+++ b/reference/datetime/datetime/createfrominterface.xml
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- $Revision$ -->
+
+<refentry xml:id="datetime.createfrominterface" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
+ <refnamediv>
+  <refname>DateTime::createFromInterface</refname>
+  <refpurpose>Returns new DateTime object encapsulating the given DateTimeInterface object</refpurpose>
+ </refnamediv>
+
+ <refsect1 role="description">
+  &reftitle.description;
+  <methodsynopsis role="oop">
+   <modifier>public</modifier> <modifier>static</modifier> <type>DateTime</type><methodname>DateTime::createFromInterface</methodname>
+   <methodparam><type>DateTimeInterface</type><parameter>object</parameter></methodparam>
+  </methodsynopsis>
+ </refsect1>
+
+ <refsect1 role="parameters">
+  &reftitle.parameters;
+  <para>
+   <variablelist>
+    <varlistentry>
+     <term><parameter>object</parameter></term>
+     <listitem>
+      <para>
+       The <classname>DateTimeInterface</classname> object that needs
+       to be converted to a mutable version. This object is not modified, but
+       instead a new <classname>DateTime</classname> object is
+       created containing the same date, time, and timezone information.
+      </para>
+     </listitem>
+    </varlistentry>
+   </variablelist>
+  </para>
+ </refsect1>
+
+ <refsect1 role="returnvalues">
+  &reftitle.returnvalues;
+  <para>
+   Returns a new <classname>DateTime</classname> instance.
+  </para>
+ </refsect1>
+
+ <refsect1 role="examples">
+  &reftitle.examples;
+  <para>
+   <example>
+    <title>Creating a mutable date time object</title>
+    <programlisting role="php">
+<![CDATA[
+<?php
+$date = new DateTimeImmutable("2014-06-20 11:45 Europe/London");
+
+$mutable = DateTime::createFromInterface($date);
+
+$date = new DateTime("2014-06-20 11:45 Europe/London");
+$also_mutable = DateTime::createFromInterface($date);
+?>
+]]>
+    </programlisting>
+   </example>
+  </para>
+ </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/datetimeimmutable/createfrominterface.xml b/reference/datetime/datetimeimmutable/createfrominterface.xml
new file mode 100644
index 0000000000..c207a5932b
--- /dev/null
+++ b/reference/datetime/datetimeimmutable/createfrominterface.xml
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- $Revision$ -->
+
+<refentry xml:id="datetimeimmutable.createfrominterface" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
+ <refnamediv>
+  <refname>DateTimeImmutable::createFromInterface</refname>
+  <refpurpose>Returns new DateTimeImmutable object encapsulating the given DateTimeInterface object</refpurpose>
+ </refnamediv>
+
+ <refsect1 role="description">
+  &reftitle.description;
+  <methodsynopsis role="oop">
+   <modifier>public</modifier> <modifier>static</modifier> <type>DateTimeImmutable</type><methodname>DateTimeImmutable::createFromInterface</methodname>
+   <methodparam><type>DateTimeInterface</type><parameter>object</parameter></methodparam>
+  </methodsynopsis>
+ </refsect1>
+
+ <refsect1 role="parameters">
+  &reftitle.parameters;
+  <para>
+   <variablelist>
+    <varlistentry>
+     <term><parameter>object</parameter></term>
+     <listitem>
+      <para>
+       The <classname>DateTimeInterface</classname> object that needs
+       to be converted to an immutable version. This object is not modified, but
+       instead a new <classname>DateTimeImmutable</classname> object is
+       created containing the same date, time, and timezone information.
+      </para>
+     </listitem>
+    </varlistentry>
+   </variablelist>
+  </para>
+ </refsect1>
+
+ <refsect1 role="returnvalues">
+  &reftitle.returnvalues;
+  <para>
+   Returns a new <classname>DateTimeImmutable</classname> instance.
+  </para>
+ </refsect1>
+
+ <refsect1 role="examples">
+  &reftitle.examples;
+  <para>
+   <example>
+    <title>Creating an immutable date time object</title>
+    <programlisting role="php">
+<![CDATA[
+<?php
+$date = new DateTime("2014-06-20 11:45 Europe/London");
+
+$immutable = DateTimeImmutable::createFromInterface($date);
+
+$date = new DateTimeImmutable("2014-06-20 11:45 Europe/London");
+$also_immutable = DateTimeImmutable::createFromInterface($date);
+?>
+]]>
+    </programlisting>
+   </example>
+  </para>
+ </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/versions.xml b/reference/datetime/versions.xml
index 3cf6481110..21139d4dc4 100644
--- a/reference/datetime/versions.xml
+++ b/reference/datetime/versions.xml
@@ -12,6 +12,7 @@
  <function name="datetime::add" from="PHP 5 &gt;= 5.3.0, PHP 7"/>
  <function name="datetime::createfromformat" from="PHP 5 &gt;= 5.3.0, PHP 7"/>
  <function name="datetime::createfromimmutable" from="PHP 7 &gt;= 7.3.0"/>
+ <function name="datetime::createfrominterface" from="PHP 8"/>
  <function name="datetime::diff" from="PHP 5 &gt;= 5.3.0, PHP 7"/>
  <function name="datetime::format" from="PHP 5 &gt;= 5.2.1, PHP 7"/>
  <function name="datetime::getlasterrors" from="PHP 5 &gt;= 5.3.0, PHP 7"/>
@@ -40,6 +41,7 @@
  <function name="datetimeimmutable::__wakeup" from="PHP 5 &gt;= 5.5.0, PHP 7"/>
  <function name="datetimeimmutable::createfromformat" from="PHP 5 &gt;= 5.5.0, PHP 7"/>
  <function name="datetimeimmutable::createfrommutable" from="PHP 5 &gt;= 5.6.0, PHP 7"/>
+ <function name="datetimeimmutable::createfrominterface" from="PHP 8"/>
  <function name="datetimeimmutable::diff" from="PHP 5 &gt;= 5.5.0, PHP 7"/>
  <function name="datetimeimmutable::format" from="PHP 5 &gt;= 5.5.0, PHP 7"/>
  <function name="datetimeimmutable::getlasterrors" from="PHP 5 &gt;= 5.5.0, PHP 7"/>