Calendar Splitter: practical workflow and limits

Split calendar occurrences into month or source groups and download a ZIP.

Use the guide alongside the working tool.

Try the local sample

{
  "start": "2026-11-01",
  "end": "2026-12-31",
  "zone": "UTC",
  "weekends": "0,6",
  "holidays": "",
  "group": "Month"
}

Split calendar occurrences into month or source groups and download a ZIP. Selected occurrences are copied into complete standalone ICS files. A multi-day event belongs to its start-date month. Month grouping uses the chosen display zone. A crossing event remains intact; no date-only clipping.

Prepare the calendar

Split calendar occurrences into month or source groups and download a ZIP.

Use the sample to inspect the exact workflow. Set the planning range and replace the demonstration entries with your own dates.

Check the assumptions

Selected occurrences are copied into complete standalone ICS files. A multi-day event belongs to its start-date month. Month grouping uses the chosen display zone. A crossing event remains intact; no date-only clipping.

Dates are inclusive in planning inputs unless labeled exclusive. Timed events require a valid IANA timezone; ambiguous daylight-saving times are rejected.

Keep and share the result

Review warnings and totals, then export the supported ICS, CSV, JSON or report formats. Exports contain the chosen data, so review sensitive names and notes before sharing.

No calendar account is connected and no reminder is scheduled by this website. Import the ICS file explicitly into a calendar app; save a JSON draft if you want to continue editing later.

Ready to apply this workflow?

Try Calendar Splitter →

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All practical guides →

Keep your original files and review the result. Found unclear instructions? Contact Team Hypomnema.