date formaat

media_ext.xml

@@ -62,8 +62,8 @@ layout: null
 {% if ccontent and ccontent != '' -%}
 <description>{{ccontent}} &#xA;{% for conf in video.conferences %}{% for c in site.conferences -%}{% if conf == c.acronym and c.content != '' -%}{{c.content | strip_html | xml_escape }} &#xA;{% endif -%}{% endfor -%}{% endfor %}{% if video.licence and video.licence  != '' -%}{{video.licence | strip_html | xml_escape }}{% else -%}This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY NC ND 4.0). https://creativecommons.org/licenses/by-nc-nd/4.0/{% endif -%}</description>
 {% endif -%}
-            <recDate>{{ recording_date | date_to_rfc822 }}</recDate>
-            <pubDate>{{ video.date | date_to_rfc822 }}</pubDate>
+            <recDate>{{ recording_date | date: '%Y-%m-%d' }}</recDate>
+            <pubDate>{{ video.date | date: '%Y-%m-%d' }}</pubDate>
             <license>{{video.licence}}</license>
             <persons>{{persons}}</persons>
             {% if video.language and video.language  != '' -%}