Custody Time Percentage Calculator
Actual custody actual time percentage using union of overlapping approved intervals in same minuteaxis; halfopen intervals, day equivalents not legal overnight count. Actual order, custody attribution, timezone and guideline conventions external; not legal entitlement.
Description
Custody-time percentages depend on the adopted reference interval and counting convention.
Custody-time percentages depend on the adopted reference interval and counting convention.1
A time union does not establish a legal custody allocation. Use this tool to calculate the stated observation or conditional model from supplied measurements.
When to use Custody Time Percentage Calculator
Use this tool to calculate the stated observation or conditional model from supplied measurements. Establish the planning scope, matching instrument or reference, observation definitions and currency or time basis.
How to use Custody Time Percentage Calculator and understand its results
- Establish the planning scope, matching instrument or reference, observation definitions and currency or time basis.
- Enter actualCallerApprovedCareIntervalsMinutes, actualCompleteReferencePeriodMinutes, using the field meanings and rules below, then run the tool.
- Read result.observedUnionCareMinutes, result.observedReferencePeriodCarePercent, result.observedCareDayEquivalents. Interpret each field using the units, signs and evidence rules below.
- If input validation fails, correct the reported field and run again. Before applying a successful result, check the stated reference scope, units, assumptions and any retained unknown evidence.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualCallerApprovedCareIntervalsMinutes | Actual caller approved care intervals minutes | list of list of number | Required |
| actualCompleteReferencePeriodMinutes | Actual complete reference period minutes | number | Required |
Supply a positive reference-period duration in minutes and a nonempty matrix of finite interval pairs. Each start must be nonnegative, each end at most the period, and each end no earlier than its start. Sort copies by start then end; merge overlapping or touching intervals before summing their lengths. Return union minutes, 100×minutes/period and minutes/1440 as possibly fractional day equivalents. Zero-length intervals are accepted. This does not count legal overnights, select an allocation or parse calendar/timezone rules.
unionMinutes=Σlength(mergeOverlappingOrTouchingIntervals); carePercent=100×unionMinutes/periodMinutes; dayEquivalents=unionMinutes/1440 Apply the field units and exact ordering, boundary and evidence rules above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Structured result containing the calculation or selected reference fields below | object |
| result.observedUnionCareMinutes | Merged interval duration in minutes, counting overlap only once | number |
| result.observedReferencePeriodCarePercent | Union care minutes as a percentage of the complete reference period | number |
| result.observedCareDayEquivalents | Union care minutes divided by 1440; fractional day equivalents | number |
{
"input": {
"actualCallerApprovedCareIntervalsMinutes": [
[
0,
60
],
[
30,
90
]
],
"actualCompleteReferencePeriodMinutes": 180
},
"output": {
"result": {
"observedUnionCareMinutes": 90,
"observedReferencePeriodCarePercent": 50,
"observedCareDayEquivalents": 0.0625
}
}
}Limitations and assumptions
A time union does not establish a legal custody allocation. Results depend on the independently established measurement basis and the exact model assumptions above.
Every listed input requires an explicit value. Unexpected fields, incorrect value types, nonfinite numbers and sparse numeric arrays fail validation; tool-specific bounds and alignment rules apply as described above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful calculation that reports a false comparison or retains unknown evidence.
Alternative or Complementary methods
Use Parenting Plan Days Calculator to examine a related aspect: A parenting-time inventory can include overlapping care intervals within one reference period.
Use Child Support Guideline Calculator where its separate inputs and scope apply: Child-support guidelines depend on the relevant jurisdiction, edition and independently established case context.
References
-
Custody Time Percentage Calculator — tool.io
Similar or alternative tools
- Parenting Plan Days Calculator
A parenting-time inventory can include overlapping care intervals within one reference period.
- Child Support Guideline Calculator
Child-support guidelines depend on the relevant jurisdiction, edition and independently established case context.