3/4 Day Swap Custody Schedule: Fixed Weekdays, Rotating Weekend

The 3/4 Day Swap is a 50/50 schedule built around two ideas: anchor the routine weekdays to one parent each, and rotate the rest. One parent always has Mon-Tue. The other always has Sun-Wed. Then Thursday, Friday and Saturday swap each week — so one week one parent gets a 3-day stretch, the next week they get a 4-day stretch. Over two weeks each parent ends up with seven days.

How it works

The pattern works on a Sunday-start week. Mondays and Tuesdays are with parent A, every week. Sundays and Wednesdays are with parent B, every week. The remaining three days — Thursday, Friday, Saturday — alternate as a block. Week 1 they're with A; week 2 they're with B. So week 1 is 3 days for A and 4 for B; week 2 flips it. The fixed weekday pairs anchor school routines, and the swapping weekend gives both parents real long-stretch time with the kids on a regular rhythm.

A typical 3/4 Day Swap cycle (Sunday-start, over two weeks):

• Week 1 — Sun: Parent B • Mon, Tue: Parent A • Wed: Parent B • Thu: Parent A • Fri, Sat: Parent B
• (Week 1 totals: A=3 days, B=4 days)
• Week 2 — Sun: Parent B • Mon, Tue: Parent A • Wed: Parent B • Thu: Parent B • Fri, Sat: Parent A
• (Week 2 totals: A=4 days, B=3 days)
• Mon-Tue always with A. Sun-Wed always with B. Thu/Fri/Sat swap weekly.
• 14-day cycle, 7 days each parent.

What it means for kids

The fixed weekday anchors are the magic for kids. Monday morning is always at the same house — same breakfast, same routine, same backpack location. Tuesday too. So school weeks have a stable spine. The variation lives in the weekends and Thursdays, which is where flexibility actually helps (different activities, different families, different vibes). For school-age kids who thrive on weekday routine but enjoy variety on weekends, this pattern fits naturally. The two-week rhythm is easier for them to read than 2-2-3 because the weekday side never moves.

What it means for parents

For parents, the appeal is predictability where it matters most: the school week. You know exactly which mornings you handle drop-off, which afternoons you do pickup, which dinners you cook. The flexibility on Thu-Fri-Sat means you alternate weekend events and longer-block evenings. The trade-off is that it's a custom-feeling pattern — slightly harder to explain to a court, school office, or grandparent than 'we do week-on/week-off'. Most families find it's worth it because the weekday stability is huge for school-age kids.

How SplitDay makes it easy

SplitDay's 3/4 Day Swap template handles the alternation for you — it's specifically designed for Sunday-start weeks with Mon-Tue and Sun-Wed as the fixed pairs. Tap the 'Swap fixed days' button if you want to flip which parent has which pair. Both parents see the same calendar, so the question 'whose Thursday is it this week?' has a one-tap answer — even your kids can check the printed fridge version.