- Utilizing rich snippets may have a large influence on how your webpages perform in the search engines. The start date and start time of the function in ISO-8601 format. Add the two the day and time so users can find events that in good shape into their timetable. For https://www.presta-addons-modules.com/en/opencart-seo-automatic-google-rich-snippets-json-ld-integration-opengraph-twitter-tags-schemaorg.html