I always forget this, so I’m documenting it here for next time I forget.
When subscribing to a shared calender in Google Calendar, it will show up immediately on the website. If you then want that calendar on your phone/iPad, you need to mark it as synced.
To do this, visit syncselect and check the calendars you want on your device.
Michael is a polyglot software engineer, committed to reducing complexity in systems and making them more predictable. Working with a variety of languages and tools, he shares his technical expertise to audiences all around the world at user groups and conferences. You can follow @mheap on Twitter