What does every other weekend parenting time equal as a percentage?

Every other weekend (Fri–Sun) equals approximately 52 overnights per year, or about 14.2% parenting time. Adding a midweek overnight brings it to ~78 nights (21.4%).

How does parenting time affect child support?

Most income-shares states reduce child support when the NCP has 92+ overnights/year (~25%). At 50/50, support equals the income difference between parents. Texas percentage model does not adjust for parenting time.

What is a 5-2-2-5 custody schedule?

A 50/50 arrangement over a two-week cycle: Parent 1 has 5 days, Parent 2 has 2 days, Parent 1 has 2 days, Parent 2 has 5 days. Each parent always has the same two weekday days, creating consistency for the child.

What is considered 50/50 custody?

50/50 custody means each parent has approximately 182–183 overnights per year. Common arrangements include alternating weeks, 5-2-2-5, and 3-4-4-3 schedules.

Can a custody schedule be changed after it is established?

Yes, with a court modification showing a substantial change in circumstances (relocation, change in child's needs, etc.). Both parents can agree informally, but formal court approval is required for legal enforceability. Changes to parenting time typically trigger child support review.

Parenting Time Percentage Calculator

Convert custody schedules to overnights per year and parenting time percentages. Compare common arrangements including 50/50, every other weekend, and custom schedules.

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Custody Schedule

Parenting Time Breakdown

14.2% / 85.8%

Parent 1 Overnights52/yr (7.4 wks)

Parent 2 Overnights313/yr (44.7 wks)

Parent 1 %14.2%

Parent 2 %85.8%

In many states, child support is reduced when the non-custodial parent has more than 92 overnights (25%) per year. Above 40% (146+ nights) typically triggers significant adjustments.

Advanced Calculator

Annual calendar visualization with 12-week grid, and side-by-side schedule comparison showing days, school nights, and monthly breakdowns.

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Schedule 1

Number of Children

Annual Parenting Time — Week On / Week Off (50/50)

183 / 182 days/yr

Parent 1 Monthly15.3 days/mo

Parent 1 School Nights128/yr

Parent 1 Split50%

Parent 2 Split50%

12-Week Calendar Visualization

Week 1

Week 2

Week 3

Week 4

Week 5

Week 6

Week 7

Week 8

Week 9

Week 10

Week 11

Week 12

Parent 1Parent 2

Professional Simulator

Full holiday & vacation modeling, travel cost analysis, child support percentage impact, and age-appropriate schedule recommendations.

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Parent 1 Custody %

Number of Children

Holiday Allocation

Thanksgiving(4d)

Christmas/Winter Break(14d)

Spring Break(7d)

Mother's Day(1d)

Father's Day(1d)

Child Birthday(1d)

Parent 1 Birthday(1d)

Parent 2 Birthday(1d)

Summer Vacation(42d)

Holiday Days Allocation

36 / 36

Parent 1 Days36 days

Parent 2 Days36 days

Total Holiday Days72 days

How the Parenting Time Calculator Works

Parenting time percentage — the share of overnights each parent has per year — is one of the most important numbers in any custody arrangement. It affects child support calculations in most states, and it's the primary metric courts use to describe custody arrangements.

This calculator converts custody schedules into overnights per year and percentage splits. You can choose from common preset schedules (alternating weeks, every other weekend, 5-2-2-5, etc.) or enter custom overnight counts. The Compare tab shows all common schedules side by side.

Parenting time percentage affects child support in most US states: when the non-custodial parent has more than 92–100 overnights per year (about 25%), most income-shares states apply a reduction to base support. At 40%+ parenting time, adjustments become substantial.

Parenting Time Formula

Parenting Time % = (Parent's Overnights ÷ 365) × 100 Common Schedules: Every Other Weekend: 52 overnights = 14.2% NCP time EOW + 1 Midweek overnight: 80 overnights = 21.9% NCP time 60/40 Extended Time: 146 overnights = 40.0% NCP time 5-2-2-5 (50/50): 182 overnights = 49.9% NCP time Alternating Weeks (50/50): 182 overnights = 49.9% NCP time Child Support Adjustment Thresholds (typical): <92 overnights: No reduction to base support 92–145 nights: Partial reduction applied 146+ nights: Substantial shared-custody adjustment

In states using the income-shares model with a shared-custody adjustment (most states), the reduction to base support roughly reflects the proportion of direct costs each parent bears during their parenting time. Some states, like Texas, do not adjust support based on parenting time below 35%.

Example Calculation

Example: Every Other Weekend + One Midweek Overnight

Every other weekend: Fri–Sun52 overnights

Every other Wed overnight26 overnights

NCP total overnights78/yr

NCP parenting time21.4%

CP parenting time78.6%

Threshold for adjustment92 overnights (no adj. here)

With 78 overnights, this NCP is below the 92-overnight threshold in most income-shares states, so no shared-custody adjustment applies to child support. Adding one more overnight per week (104 total) would push over the threshold and trigger a support reduction.

Frequently Asked Questions

A standard every-other-weekend schedule (Friday evening to Sunday evening) gives the non-custodial parent approximately 52 overnights per year, which equals about 14.2% of the year. Adding one overnight per week during the off weeks (a mid-week overnight) brings it to about 78 overnights or 21.4%. Many courts consider every-other-weekend the minimum baseline for "standard" NCP time, though it's well below the threshold for shared-parenting adjustments in most states.

In most income-shares states, child support is adjusted when the non-custodial parent has more than 92–100 overnights per year (approximately 25% parenting time). The logic is that when the NCP has more time, they directly bear more child-related expenses (food, activities, etc.) and the custodial parent bears fewer. At 50/50 parenting time, child support is purely a function of the income difference between parents — the higher earner pays the lower earner to equalize each household's ability to provide for the child. In Texas (percentage model), parenting time does not directly reduce support obligations.

The 5-2-2-5 schedule (also called "5-2-2-5 rotating") is a popular 50/50 arrangement. In a two-week cycle: Parent 1 has the child for 5 days, Parent 2 has the child for 2 days, Parent 1 has the child for 2 days, and Parent 2 has the child for 5 days. Each parent always has the same two days each week, which creates consistency. For example, Parent 1 might always have Monday–Friday for one cycle, then just Monday–Tuesday the next. This schedule is popular because children maintain regular contact with both parents each week without too many transitions.

True 50/50 custody (also called equal time or shared physical custody) means each parent has the child approximately half the time — roughly 182–183 overnights per year each. Common 50/50 schedules include alternating weeks, 5-2-2-5, 3-4-4-3, and 2-2-3 (week A: 2 days Parent 1, 2 days Parent 2, 3 days Parent 1; week B: reversed). Some states presume 50/50 is in the child's best interest absent compelling reasons otherwise; others default to one primary parent. Courts ultimately decide based on the child's best interests, school proximity, parental work schedules, and historical caregiving patterns.

Yes, custody schedules can be modified, but it requires showing a "substantial change in circumstances" — such as a parent relocating, a significant change in the child's needs, changes in school or activities, or concerns about the child's welfare. Both parents can agree to changes informally or formally (through a court modification). Formal modifications must be court-approved to be legally enforceable. Courts always apply a "best interests of the child" standard. Parenting time changes typically trigger a review and potential modification of child support as well.