Sorry wrong link! Here is the correct one: https://plus.google.com/hangouts/_/calendar/N250MzV1Y20zdmw1YzdyaG0yaTBqcjcwaWNAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ.r2a1okigi1o4jrpf0c078b29t4?authuser=0