calendr.events

Fix / calendar toolbox

Timezone Checker

Find missing timezone definitions and ambiguous floating timestamps.

Processed in your browser

Opening your local workspace…

How it works.

  1. 01Open a calendar.
  2. 02Review UTC, floating, all-day and TZID timestamp classifications.
  3. 03Resolve unknown zones explicitly before requesting conversion.

The important details.

Embedded VTIMEZONE definitions and verified IANA names are distinct sources. No timestamp defaults to the browser timezone.

A good question.

Is floating time always wrong?

No. Floating time deliberately follows the reader's local clock. Conversion requires an explicit interpretation zone.

Keep going.

All tools →

Fix

Timezone Converter

Convert resolvable event timestamps to UTC without guessing zones.

Open & edit

ICS Inspector

Explore events, tasks, reminders and timezone rules inside your file.

Fix

ICS Repair

Review problems, choose explained repairs and save a corrected calendar copy.

Your file stays in this browser tab. No account, no calendar upload, no calendar-content storage. Read our privacy approach.