<https://bsec.org/calendar-2/#webpage>
<http://schema.org/datePublished>
"2016-06-27T11:44:18+00:00"^^<http://schema.org/Date>
<https://bsec.org/calendar-2/action~agenda/page_offset~-1/cat_ids~21,15/tag_ids~13,68/request_format~json/>