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Shared Space Key Return Lag

Calculate signed actual-minus-due shared-space key return lag in a common monotonic time basis.

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Description

Measure a shared-space key return's signed gap from its due time.

Community records describe contributions, volunteer time, grants, notices, language requests and meeting participation. Person-minutes differ from elapsed task time, assigned in-kind values require a valuation basis, and a nominal seat count need not be a whole-person allocation. Supplied participation or permission flags do not verify actual access, consent or eligibility.

Measure a shared-space key return's signed gap from its due time.

When to use this tool

Use Shared Space Key Return Lag when you already have dueReturnTime, actualReturnTime and need to measure a shared-space key return's signed gap from its due time.

How to use the tool and how it works

  1. Enter dueReturnTime, actualReturnTime. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read signedGap. Use the output convention below.

Return actualReturnTime-dueReturnTime.1

Input fieldMeaning and unitsAccepted input
dueReturnTimeDue Return TimeRequired. Finite number.
actualReturnTimeActual Return TimeRequired. Finite number.
Output fieldInterpretationReturned shape
signedGapSigned GapRequired. Finite number.
json
{
  "input": {
    "dueReturnTime": 12,
    "actualReturnTime": 17
  },
  "output": {
    "signedGap": 5
  }
}

Limitations and assumptions

  • No clock, key, return, access right, late penalty or actual booking is verified.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Review the underlying meeting, funding, service and volunteer records with the applicable project rules. Use full budgets, schedules and participation evidence when evaluating delivery or fairness; local labels and arithmetic retain only the stated assumptions.

References

  1. Calculation and input contract: community-development/shared-space-key-return-lag — tool.io

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