The Dates Page for the conferences are:
Conferences have a short date summary on the home page and a dedicated, more detailed Dates page, available in the menubar at the top of the page. Dates and deadlines are listed for things like calls & submissions, registration, volunteering and sponsors.
On the detailed dates page, you can subscribe in your personal calendar to dates that are relevant to you. E.g., if you are a workshop organizer, you should subscribe to the “Workshops" section. To subscribe click the button next to “add this section to your feed” (circled in green below). You may subscribe to multiple sections. To add your chosen dates to your personal calendar, use the “iCal Feed” button. If you cannot subscribe to a calendar feed, then use the iCal button to download the dates and add them statically to your calendar. The iCal Feed method will update your calendar periodically if a date changes. The iCal download will not automatically update if a date changes.