<abstract>This specification provides historical documentation of the jabber:x:delay namespace, which has been deprecated in favor the urn:xmpp:delay namespace defined in XEP-0203.</abstract>
<remark><p>Specified that the timezone is to be understood as UTC; specified security considerations; corrected several small textual errors.</p></remark>
<pclass='note'>Note: This specification has been deprecated in favor of &xep0203;.</p>
<p>This document provides canonical documentation of the 'jabber:x:delay' namespace, which was long used by Jabber applications to mark message or presence stanzas as delivered with a delay. This document is of historical importance only, since it has been deprecated in favor of <cite>XEP-0203</cite>.</p>
<p>The 'jabber:x:delay' namespace is used to provide timestamp information about data stored for later delivery. The most common uses of this namespace are to stamp:</p>
<ul>
<li>A message that is sent to an offline entity and stored for later delivery.</li>
<li>The last presence update sent by a connected node to a host.</li>
<li>Messages cached by a multi-user chat room for delivery to new participants when they join the room.</li>
</ul>
<p>Information about the delivery delay is communicated by adding to the <message/> or <presence/> stanza one and only one <x/> child qualified by the 'jabber:x:delay' namespace. This information is added by the server or component that delivers the information. The following attributes are allowed on the <x/> element:</p>
<ul>
<li><cite>from</cite> -- The Jabber ID of the entity that originally sent the XML stanza or that delayed the delivery of the stanza (for example, the address of a multi-user chat room). This attribute is RECOMMENDED.</li>
<li><cite>stamp</cite> -- The time when the XML stanza was originally sent. The format SHOULD be "CCYYMMDDThh:mm:ss" (see <linkurl="#time">A Note on Time Formats</link> below). This attribute is REQUIRED.</li>
</ul>
<p>In addition, the <x/> element MAY contain XML character data that provides a natural-language description of the reason for the delay.</p>
</section1>
<section1topic='Examples'anchor='examples'>
<examplecaption='Receiving a Message Sent While Offline'><![CDATA[
<message
from='romeo@montague.net/orchard'
to='juliet@capulet.com'
type='chat'>
<body>
O blessed, blessed night! I am afeard.
Being in night, all this is but a dream,
Too flattering-sweet to be substantial.
</body>
<xxmlns='jabber:x:delay'
from='capulet.com'
stamp='20020910T23:08:25'>
Offline Storage
</x>
</message>
]]></example>
<examplecaption='Receiving the Last Presence Update of Another Entity'><