VTIMEZONE Block Builder

Construct valid IANA timezone definitions for iCalendar.

Tool Interface

How it works

This tool strictly evaluates input against RFC 5545 guidelines. It runs entirely locally in your browser using Alpine.js; no calendar data is transmitted to our servers.

Assumptions

Input strings must be UTF-8 encoded.
Line folding (CRLF followed by whitespace) is automatically unwrapped before parsing.