Calendar Free-Time Finder: practical workflow and limits

Find genuinely open windows between imported busy events.

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": "",
  "fromTime": "09:00",
  "toTime": "17:00",
  "minimum": "30",
  "buffer": "10"
}

Find genuinely open windows between imported busy events. Expands supported ICS recurrence in the chosen range, unions busy overlaps, clips to your working windows and applies buffers. Transparent events are ignored; all-day busy events block their date. No live account access.

Prepare the calendar

Find genuinely open windows between imported busy events.

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

Check the assumptions

Expands supported ICS recurrence in the chosen range, unions busy overlaps, clips to your working windows and applies buffers. Transparent events are ignored; all-day busy events block their date. No live account access.

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 Free-Time Finder →

Explore a related workflow

CSV & JSON to Calendar: practical workflow and limits
Turn structured event rows into validated importable calendar files.
Calendar Time Audit: practical workflow and limits
Analyze calendar hours by category and separate overlap from occupied time.
Calendar Privacy Cleaner: practical workflow and limits
Replace event text with Busy while preserving the dates you choose to share.
Calendar Time Shifter: practical workflow and limits
Shift a calendar by local days or absolute minutes with DST validation.

All practical guides →

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