Calendar Doctor
Inspect one ICS file before importing or sharing it. Calendar Doctor reports structural and event problems without inventing dates, UIDs, time zones, or recurrence rules.
Calendar diagnosis
File warnings
Issues
| Severity | Event | Line | Problem |
|---|
Time-zone inventory
Event preview
| # | Summary | Start | End | Time zone | Recurrence | UID |
|---|
Representation repairs
Only the options you select are applied. Event dates, UIDs, DTSTAMP, durations, time zones, and recurrence rules are never generated or guessed.
Calendar Doctor does not generate missing UID, DTSTAMP, DTSTART, DTEND, TZID, VTIMEZONE definitions, or RRULE values. Semantic errors remain visible until you correct them in the source calendar.
Repair result
Temporary local processing
The ICS upload is processed temporarily. Event content and filenames are not added to analytics.
A referenced TZID without an embedded VTIMEZONE is reported as a warning, not automatically replaced, because calendar applications may use external time-zone databases differently.