“We at the moment favor JSON-LD markup. I think many of the new structured data which are style of come out for JSON-LD initially. Making sure that’s what we favor.” The event has been rescheduled to the later date. Update the startDate and endDate with the appropriate new dates. Optionally, https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-google-rich-snippets-json-ld-opengraph-twitter-tags-schemaorg.html