Childcare Coverage Gaps
Find uncovered care intervals from a required time window and several carers' availability. Allow travel buffers and combine overlapping coverage.
Starts with an editable example. Replace the dates and rules with your own.
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Select your counting rules and calculate.
Calculation details
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How to use this calculator
Enter the care date and required start/end time. List each carer's availability on that date, a travel buffer at both ends and the local time zone.
Coverage is the union of usable availability after buffers. Overlaps count once, and availability outside the required interval is clipped. A carer whose buffers consume their whole window contributes no coverage.
A worked example
For 09:00-17:00 care, Alex available 08:30-12:30 and Sam 13:00-17:30 with 15-minute buffers leave a 12:15-13:15 gap: 60 minutes.
Does this confirm someone has agreed to provide care?
No. It calculates only the intervals you enter. Confirm assignments and travel arrangements with the people involved.
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.