Existence works with your Google Calendar, when you connect your calendar, Existence imports your existing events as a starting point for your week’s design. It will import future events as well that are added to your Google Calendar.
From there, you build a complete time record of your upcoming week that includes everything your calendar doesn’t capture: sleep, meals, unstructured time, and everything in between.
You are able to, and it is strongly encouraged, to connect multiple calendars to Existence to account for your work, personal or shared time.