Network Working Group B. Desruisseaux, Ed. Request for Comments: 5545 Oracle Obsoletes: 2445 September 2009 Category: Standards Track Internet Calendaring and Scheduling Core Object Specification (iCalendar) Abstract This document defines the iCalendar data format for representing and exchanging calendaring and scheduling information such as events, to-dos, journal entries, and free/busy informati
![RFC 5545: Internet Calendaring and Scheduling Core Object Specification (iCalendar)](https://cdn-ak-scissors.b.st-hatena.com/image/square/953612233c1caa8cd22e653e70be59a9af7118ac/height=288;version=1;width=512/https%3A%2F%2Fstatic.ietf.org%2Fdt%2F12.23.0%2Fietf%2Fimages%2Fietf-logo-card.png)