iCalendar
iCalendar is a standard data format (RFC 5545) for exchanging calendar and scheduling information, such as events, appointments, and tasks, between different applications and systems. It uses a plain text format with a .ics file extension to represent calendar data in a structured way, enabling interoperability across email clients, calendar software, and web services. This format allows users to share, import, and export calendar entries without compatibility issues.
Developers should learn iCalendar when building applications that involve calendar integration, event management, or scheduling features, such as booking systems, email clients, or productivity tools. It is essential for ensuring data portability and compatibility across platforms like Google Calendar, Outlook, and Apple Calendar, making it a key skill for projects requiring cross-platform calendar synchronization or automated event generation.