Format reference

ICS Format Hub

ICS (.ics) files use the iCalendar format to encode events, schedules, and recurrence rules for calendar applications. Use sample .ics files to validate calendar imports, timezone handling, recurring events, and scheduling interoperability.

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text/calendar
Related Formats in Document

ICS Related Formats

Format Strategy Links

ICS Format Guides

Open ICS FAQ
Implementation Notes

ICS Implementation Notes

Use the manifest endpoint for deterministic fixture selection in CI, then validate MIME/type detection against actual parser output.

If this format appears in multiple categories, prefer category-specific hub pages to keep test assumptions aligned with real usage.