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4-3 parenting time calculator

A 4-3 custody schedule gives Parent A 57.14% of parenting time (208 overnights per year) and Parent B 42.86% (156 overnights), calculated over the 12 months from January 2026. The cycle repeats every 7 nights with 2 handoffs.

Four nights with one parent, three with the other, every week.

People call this a 60/40 schedule, but it actually computes to 57/43. A 7-night cycle cannot divide into exactly 60/40. We show you both numbers — the name people use, and what the calendar really does.

Overnights per year

4-3 schedule · 57/43 split · 364 nights from January 2026
ParentOvernights per yearPercentage
Parent A20857.14%
Parent B15642.86%

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What the first month looks like

Key: A = Parent A, B = Parent B. Each day cell is labelled with the letter of the parent it belongs to.

4-3 rotation, January 2026
  1. 5A2026-01-05: Parent A
  2. 6A2026-01-06: Parent A
  3. 7A2026-01-07: Parent A
  4. 8A2026-01-08: Parent A
  5. 9B2026-01-09: Parent B
  6. 10B2026-01-10: Parent B
  7. 11B2026-01-11: Parent B
  8. 12A2026-01-12: Parent A
  9. 13A2026-01-13: Parent A
  10. 14A2026-01-14: Parent A
  11. 15A2026-01-15: Parent A
  12. 16B2026-01-16: Parent B
  13. 17B2026-01-17: Parent B
  14. 18B2026-01-18: Parent B
  15. 19A2026-01-19: Parent A
  16. 20A2026-01-20: Parent A
  17. 21A2026-01-21: Parent A
  18. 22A2026-01-22: Parent A
  19. 23B2026-01-23: Parent B
  20. 24B2026-01-24: Parent B
  21. 25B2026-01-25: Parent B
  22. 26A2026-01-26: Parent A
  23. 27A2026-01-27: Parent A
  24. 28A2026-01-28: Parent A
  25. 29A2026-01-29: Parent A
  26. 30B2026-01-30: Parent B
  27. 31B2026-01-31: Parent B
  28. 1B2026-02-01: Parent B
  • Parent A
  • Parent B

Other schedules

These figures are arithmetic on a repeating rotation, not legal advice. Courts in some states count overnights differently for support calculations — check your own order.