There is no Montana statute that says a two-year-old gets one schedule and a twelve-year-old another. The law asks what residential schedule is in the best interest of your child, and it names the child's developmental needs as one of the things to consider. This page describes the schedules parents commonly choose from and the questions each one raises at different ages. It is part of our Montana Divorce Guide.
What Montana Law Says About Age
Several parts of the parenting statutes bear on age without setting any rule by age:
- The court considers the developmental needs of the child (MCA § 40-4-212(1)(i)).
- It considers continuity and stability of care and the child's adjustment to home, school, and community (MCA § 40-4-212(1)(d), (h)).
- It treats frequent and continuing contact with both parents as in the child's best interests unless a court finds, after a hearing, that contact would be detrimental (MCA § 40-4-212(1)(l)).
- One objective of a final plan is to provide for the child's changing needs as the child grows, in a way that minimizes the need for future amendment (MCA § 40-4-233(4)).
Nothing in those sections endorses one rotation over another. We do not claim that research favors any particular schedule, and you should be cautious of any source that says the law does.
Common Residential Schedules
| Schedule | How it works | What to notice |
|---|---|---|
| Week on, week off | The child spends seven days with one parent, then seven with the other. | One exchange a week. Seven days between each parent's time. |
| 2-2-3 | Two days with parent A, two with parent B, three with parent A. The next week the pattern flips. | Three exchanges a week. Never more than three days apart. Weekdays change from week to week. |
| 5-2-2-5 (also written 2-2-5-5) | Each parent has the same two weekdays every week, and the parents alternate the three-day weekend. | Fixed weekdays for activities. Stretches of five days with each parent. |
| Primary home with alternating weekends | The child lives mainly with one parent and spends every other weekend with the other, sometimes with a midweek evening or overnight. | One school-week home. Longer gaps between the other parent's time unless midweek contact is added. |
| Long-distance schedule | The child lives with one parent during school and spends longer blocks, such as part of the summer and school breaks, with the other. | Few exchanges, long stretches, and travel to plan and pay for. |
The first three divide overnights equally. Montana law does not presume an equal division, as explained in is 50/50 parenting the default, and it does not rule one out either.
Two Trade-Offs Behind Every Schedule
Nearly every schedule is a balance between two things. The first is the number of exchanges. Each handoff is a transition for the child and a point of contact between the parents. The second is the length of time apart from each parent.
These pull in opposite directions. A 2-2-3 keeps time apart short and exchanges frequent. Week on, week off does the reverse. Which balance suits your child depends on the child's age and temperament, how the two of you handle exchanges, and how far apart you live.
Questions to Ask at Each Stage
Because the statute points to developmental needs without defining them, it helps to think in questions rather than rules.
- Infants and toddlers. Who has been providing daily care, and how will feeding and sleep routines carry across two homes? How long is this child comfortable away from each parent? Can the schedule step up as the child grows?
- Preschool and early grades. Can the child keep track of where they will be tomorrow? Is the pattern simple enough to put on a calendar a child can read?
- School-age children. How do school, homework, and activities fit? Does each home have what the child needs on school nights? Are exchanges at school workable?
- Teenagers. How do jobs, sports, driving, and friends fit? What does the teenager want, and how will the plan allow for flexibility without leaving one parent out?
If your child has medical, developmental, or educational needs that affect transitions, bring that information into the discussion. See divorce with a special needs child. A child's pediatrician or counselor may be able to speak to what the child can handle.
Building In Change as Your Child Grows
A schedule that fits a toddler may not fit a second grader. Montana law anticipates that. A final plan may provide for periodic review when either parent or the child requests it, or when circumstances arise that the parents foresee as triggering a need for review, "such as attainment by the child of a certain age" (MCA § 40-4-234(2)(f)).
Parents can go further and write a stepped schedule into the plan itself, with one pattern until kindergarten and another after. Doing so serves the statutory objective of minimizing later amendment. Without a step or review clause, changing a final schedule means agreeing with the other parent or meeting the test for amending a parenting plan.
Holidays, Summers, and the Details
The residential schedule in a final plan includes "provisions for holidays, birthdays of family members, vacations, and other special occasions" (MCA § 40-4-234(2)(c)). In practice that means a second layer that overrides the regular rotation: which parent has which holiday in odd and even years, how school breaks are divided, and how much vacation notice each parent gives.
The regular schedule also needs exchange times and places. For the complete list of plan terms, see what a parenting plan must include. How the schedule relates to support is covered in parenting time and child support.
When Parents Cannot Agree on a Schedule
If you and the other parent propose different schedules, the court decides using the best interest factors. It may order mediation or another dispute resolution process first (MCA § 40-4-234(4)). Parents who are able to work together can use A&M Law's Cooperative Family Law process to build a schedule jointly.
If exchanges are unsafe because of abuse or threats, tell your lawyer, because the schedule and the exchange arrangements should account for that. If you are in danger, call 911. The National Domestic Violence Hotline is 1-800-799-7233.
This page explains Montana law in general as of the 2025 Montana Code Annotated. It is not legal advice about your specific case.