Illinois · 4-3
4-3 in Illinois
The child is with one parent four nights a week and the other three, on the same days every week. In Illinois this is written into a Parenting Plan, where time with a child is called parenting time.
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The rotation
| Week | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
| 1 | A | A | A | A | B | B | B |
What Illinois expects
Illinois abolished 'custody' in 2016. Parents must file a proposed parenting plan within 120 days of a petition. The statute enumerates required contents — decision-making by category, the schedule, transportation, relocation notice, and a right-of-first-refusal provision if the parents want one.
Governing law: 750 ILCS 5/602.10.
The honest trade-off
The most predictable schedule on this list — every week is identical, so there is no odd/even week to track and no calendar needed after the first month. It's also the natural on-ramp to 50/50: shifting a single night makes it 3-4-4-3.