Protocol

The iCalendar (RFC 5545) Specification

Detailed archival documentation on the mechanics of the icalendar (rfc 5545) specification.

Core Concepts

When dealing with calendar synchronization, understanding the raw data structure is critical. This section outlines the primary failure modes and standard implementations.

// Example Code Block BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Phone Calender Archive//EN END:VCALENDAR

Common Pitfalls

  • Assuming UTC is always sufficient without VTIMEZONE definitions.
  • Failing to handle EXDATEs in recurring series.
  • Truncating UID strings causing silent overwrites.

Related Tools

Use our diagnostic suite to test these concepts against your own data.

View Tools →