Trip Cancellation Window
Turn entered cancellation terms into dated penalty windows. Resolve each boundary in the provider's local time zone and export reminders.
Starts with an editable example. Replace the dates and rules with your own.
Your calculation
Ready when you are
Choose your dates.
Select your counting rules and calculate.
Calculation details
| Step | Value |
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How to use this calculator
Set the service date/time and provider-local cutoff clock time. Add each penalty boundary as calendar days before service, plus the terms before the earliest boundary.
Lead days subtract local dates before applying the cutoff time. Boundaries are inclusive for the new tier and exclusive for the previous tier. Duplicate boundaries and cutoffs after service begins are rejected.
A worked example
For service on December 20, 2026, a fourteen-day boundary at 18:00 begins December 6 at 18:00 in the chosen zone. Seven-day and one-day tiers begin December 13 and 19.
Will exporting a reminder cancel my reservation?
No. The tool only organizes terms you enter. Confirm the provider's process, deadlines and penalties before acting.
Which calendar and years are supported?
Use Gregorian dates from 1900 through 2100, with results in that range. Most daily plans allow up to 366 dates; service-budget searches allow 731. Timed intervals have exclusive ends and use browser IANA time-zone rules; nonexistent local times are rejected and repeated times require your choice. Working calendars and policy terms are entered by you. The holiday comparison uses TimeCubby's published country/region coverage. Copy, CSV and print include assumptions; calendar exports appear when dated events exist.
What happens to my dates?
Calculations run on your device. Saving a calculation is optional and keeps it in this browser. A setup link contains the dates and settings you entered; anyone with the link can read them. Use one tab per saved calculator. Clear saved data from Privacy & settings.