The every third week schedule runs on a 3-week cycle — children spend 2 consecutive weeks with one parent, then 1 full week with the other. Best for families where distance makes frequent transitions impractical, including military families, long-distance coparents, and families separated by a multi-state move.
The primary parent has the children for 14 consecutive days. Then the other parent has them for 7 consecutive days. This 21-day cycle repeats throughout the year. Transitions happen once every 1–2 weeks, which is ideal for families who live in different cities. The secondary parent gets ~122 overnights per year — much more than 80/20 alternating-weekends but still less than 50/50.
A 14-day stretch with one parent is a real test for kids. Children 10+ usually adjust within a few cycles, especially with daily video calls during the off-week. Younger children (under 8) often experience genuine separation distress around days 8-12 of the longer block — most families using this schedule pair it with twice-daily phone or video contact and supplement with extended summer/holiday time so the year-end balance is closer to 65/35 in lived experience.
A family where one parent moved out of state for a job opportunity often uses every-third-week. Flying the kids out monthly is expensive and exhausting; consolidating to one trip every three weeks is sustainable. School stays with the primary parent; the secondary parent's week is supplemented by daily video calls.
Before locking in any custody schedule, walk through these prompts with your coparent. The schedule itself is the easy part — making it work over years requires alignment on the things below.
If both parents are in the same city, every-weekend is the more common 70/30 — better for school-week consistency. If equal parenting time matters more than distance, alternating weeks (50/50) requires the same low transition frequency but assumes both parents are within commuting range. If even less time with the secondary parent is appropriate, 80/20 alternating-weekends is the next step down.
Kidtime supports any custody arrangement — create your own pattern, set custom rotations, and track time automatically.