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i-TimeManagement

Shift schedule

4/10 work schedule: calendar and hours

Four 10-hour days a week and three days off: 40 hours in four days.

PatternFour 10-hour days, three off
Cycle7 days
Average hours per week40
Hours per year, average2,087
Days worked per yearabout 209
Hours in any 28 days160
Shift length10 hours
Longest run of shifts4 in a row

On a 4/10 schedule you work four 10-hour days and get a 3-day weekend every week. Federal agencies call it the four-day workweek under their compressed work schedule rules.

The pattern

Day 1 2 3 4 5 6 7
Hours 10 10 10 10 off off off

Hours

Over one 7-day cycle that is 40 hours, an average of 40 hours a week. Because the cycle does not line up with a calendar week, some weeks have more hours than others: the calendar above shows each week’s total and the hours over 40.

Lunch is not counted in the 10 hours, so a typical day runs about 10.5 hours door to door.

Overtime

Under federal law, most hourly employees get overtime for hours over 40 in their employer’s fixed workweek, whatever the schedule. Fire and police departments can use a longer work period under section 7(k) of the FLSA; for fire protection that is 212 hours in 28 days. State rules and union contracts can add more.

Sources

Sources last checked 1 November 2026.

Frequently asked questions

What is a 4/10 work schedule?

Four 10-hour workdays and three days off each week, 40 hours total.

Does a 4/10 schedule get overtime?

Not under federal law, since the week is 40 hours. California and a few other states have daily overtime rules unless an alternative workweek is properly adopted.

Which day is off?

Usually Monday or Friday, set by the employer.

Other shift schedules