Shift work and shared care schedules

How common weekend work is

Eurostat reported that 22.4% of employed people in the EU usually worked on weekends in 2023. Among employees the share was 19.2%, among self-employed people with employees 46.7% and among self-employed people without employees 37.8%. Greece (32.3%), Italy (30.9%) and Cyprus (26.4%) had the highest shares of employees working weekends, and Lithuania (3.0%), Poland (4.5%) and Hungary (6.6%) the lowest.

The Eurostat figures cover weekend work only and do not count evenings or nights, so they understate non-standard hours. Weekends are also the days that alternating-weekend schedules hand to one parent on a fixed rotation, so a parent who works every second weekend can find the two patterns colliding.

Why fixed weekdays break down against a rota

A pattern such as 2-2-5-5 keeps the same two weekdays with each parent every week. A parent on a rotating roster, such as a hospital or emergency-services rota, has working days that move from one week to the next, so a fixed Monday and Tuesday will sometimes fall on a shift. A rota may also be published only four weeks ahead.

One alternative is to agree on a number of nights across a fortnight, for example 7 of 14, and let the rota decide which nights they are. The child's nights with the shift-working parent are then placed on nights the parent is not working. The trade-off is less predictability for the child, which a printed or shared calendar covering the full rota period can offset.

Choosing a care schedule — what makes one fit

What research says about night work and children

Dunifon and colleagues analysed 2,367 mothers of children aged 3 to 5 in the US Fragile Families and Child Wellbeing Study, published in Developmental Psychology in 2013. They defined night shift as work between 11 pm and 7 am. Children of mothers who worked nights had higher scores for aggressive behaviour than children of mothers on standard schedules, by about 0.18 of a standard deviation in one of the models, a result significant only at the 10% level. The authors describe their findings as suggestive evidence for modest associations. Evening, weekend and rotating shifts were not significant predictors in any model.

The authors note that the effect fell by more than two-thirds, and was no longer significant, in a fixed-effects model that controls for stable family differences. They conclude that the simpler estimates are probably inflated by unmeasured family factors. The sample was mostly urban and lower-income, it covered mothers only, and the outcomes were reported by the mothers themselves. The finding applies to night work, not to shift work as a whole.

Planning handovers around night shifts

The Norwegian National Institute of Occupational Health (STAMI) advises against more than three consecutive shifts of the same type when a rota includes nights, and notes that Norwegian law requires at least 11 hours off between shifts, while studies suggest 12 to 16 hours may be needed. It also advises avoiding morning shifts that start before 07:00.

In a care schedule, this points to a few concrete rules. A handover should not fall in the hours straight after a night block, and a parent who finishes at 07:00 is poorly placed to do a school run at 07:30. The child's nights in that home can be placed on nights the parent is off, with the first morning after a night block covered by the other parent or by an adult both parents have agreed on.

Agreeing how rota changes are handled

A written agreement for a shift-working parent can set three numbers: how soon the rota is shared with the other parent after the employer issues it (for example within 48 hours), how much notice a swap needs when it is the parent's own request (for example seven days), and by when a missed night is made up (for example within the following four weeks). A change forced by the employer is better handled separately from a swap the parent asks for, since the notice period cannot apply to the first.

Coordination tools built for two-home families, Lina among them, hold a shared calendar that both parents can see, so a changed shift is visible to both without the child carrying the news between the homes.

Writing a care agreement — what it should cover