---
title: Measure Shared Parenting Time Equity Across Calendar Holidays — Free
description: Co-parenting holiday agreements strive for fair sharing, but alternating odd and even calendar years often produces surprising imbalances in actual holiday parenting hours. Enter your agreed holiday blocks, assigned co-parent, and scheduled durations in hours to measure the net parenting time gap and verify agreement balance.
category: family
last_verified: 2026-09-30
freshness: green
published: 2026-09-30
canonical_url: https://gratis-ai.pages.dev/articles/shared-custody-holiday-rotation-balance.html
companion_app_url: https://gratis-ai.pages.dev/apps/shared-custody-holiday-rotation-balance.html
reading_time_minutes: 8
tags: family, holidayparity, local-first, explicit-assumptions, no-account
---

# Measure Shared Parenting Time Equity Across Calendar Holidays — Free

Co-parenting holiday agreements strive for fair sharing, but alternating odd and even calendar years often produces surprising imbalances in actual holiday parenting hours. Enter your agreed holiday blocks, assigned co-parent, and scheduled durations in hours to measure the net parenting time gap and verify agreement balance.

**Free and complete.** This guide is a standalone free tool — no account, no card, anywhere. The only paid option is one optional extra outcome: $4 one-time. Nothing in the free tier is gated.

## Who it's for

Co-parents, family mediators, and legal counselors evaluating shared holiday schedules.

## What's free

- one complete unwatermarked holiday-parity sheet run in the app
- three labeled samples and unlimited article-demo calculations
- complete result text and a user-triggered input-state link

## Optional paid add-on

**$4 one-time.**

- unlimited subsequent holiday-parity sheet app calculations after a local convenience signal
- print the holiday-parity sheet with visible assumptions and its safety boundary
- CSV of the displayed hours and row workings; conditional estimate uses your manual-retyping minutes
- five local reading summaries (headline/count/time), not saved full inputs or cross-device backups

## Sources & verification

- Tool: GratisAI local-first instrument (no key, no account)
- Primary source: the free tool itself (local-first, no external dependency)
- Last verification: 2026-09-30 (green)

## Use it

- Interactive guide: https://gratis-ai.pages.dev/articles/shared-custody-holiday-rotation-balance.html
- Companion app: https://gratis-ai.pages.dev/apps/shared-custody-holiday-rotation-balance.html
- This machine-readable mirror: /mirrors/shared-custody-holiday-rotation-balance.md

*Generated free at https://gratis-ai.pages.dev/articles/shared-custody-holiday-rotation-balance.html — every guide on GratisAI is a complete, working tool. $0, no account, no card, anywhere.*