Set my smart home mode to Away when my vacation event start in my iOS Calendar

Create custom workflows effortlessly by selecting triggers, queries, and actions. With IFTTT, it's simple: “If this” trigger happens, “then that” action follows. Streamline tasks and save time with automated workflows that work for you.
8 triggers, queries, and actions
iOS Calendar makes setting up and sharing your events easy. Keep your calendar information up to date across multiple devices, including iPhone, iPad, and your laptop. This service requires the IFTTT app v3.2.0 or above.
myUplink lets you monitor and control your system.