Is 8 hours between shifts allowed?

In the EU the minimum daily rest is 11 consecutive hours, though hospitals can use exceptions that give equivalent rest later. ACGME says residents should have 8 hours off, and emergency medicine residents need time off at least as long as the shift they just worked. ACEP's statement for emergency physicians gives no hour figure.

Does 11 hours off mean 11 hours of sleep?

No. The 11 hours run from the end of one shift to the start of the next, so the commute, meals and winding down all come out of that time.

How can I find quick returns in my own schedule?

Enter your shifts in the rest between shifts calculator, or bring your calendar link into My hours, which shows every gap under 11 hours.

How many hours between shifts? The 11-hour floor and quick returns

Updated October 8, 2026 · 3 min read

Plan at least 11 hours from the end of one shift to the start of the next. That is the EU's minimum daily rest and the floor shift work researchers recommend. A shorter gap is called a quick return, and a 2016 systematic review found signs that quick returns worsen sleep and add to sleepiness and fatigue.

What counts as a quick return

A quick return is a gap of less than 11 hours between two shifts. The clock runs from the end of one shift to the start of the next, so sign-out, charting, the drive home, meals and the drive back all come out of it.

A night shift from 23:00 to 07:00, then an evening shift from 15:00 to 23:00 the same day: 8 hours off, 3 hours short of the 11-hour line.

The 2016 review counted gaps of 11 hours or less and sorted them into three kinds, which affected sleep and sleepiness differently:

The three kinds of quick return, with ED shift times
Kind	Example	Time off
Evening to day	15:00 to 23:00, then 07:00 to 15:00 the next day	8 h
Night to evening	23:00 to 07:00, then 15:00 to 23:00 the same day	8 h
Day to night	07:00 to 15:00, then 23:00 to 07:00 starting the same day	8 h

What the rules and guidance say

Minimum time between shifts, by source
Source	Who it covers	Minimum between shifts
EU Working Time Directive, Article 3	Workers in EU member states	11 h in a row per 24 h
2020 consensus of 15 shift work researchers	Night shift schedules	11 h or more
NIOSH training for nurses	Nurse schedules	At least 11 h
ACGME emergency medicine requirements, 2026	EM residents on ED rotations	At least as long as the shift just worked
ACGME common requirement	All residents	Should have 8 h
ACEP policy statement	Emergency physicians	No hour figure; regular periods of 24 h or more off

EU member states may make exceptions to the 11 hours for hospital care, including doctors in training, if staff get equivalent compensatory rest.

ACGME gives its own worked example: a resident who works a 10-hour shift from 21:00 to 07:00 needs 10 hours off before the next clinical shift. With no conference after the shift, the earliest restart is 17:00.

What quick returns do to sleep

The 2016 review pooled 22 studies. It found signs that quick returns worsen sleep and add to sleepiness and fatigue, while the evidence on longer-term physical and mental health, and on work-life balance, was inconclusive.

NIOSH's training for nurses uses a familiar example: an evening shift that ends at 23:30 followed by a day shift that starts at 07:00 or 08:00 leaves little time to sleep.

How to keep 11 hours in an ED schedule

Rotate forward: days, then evenings, then nights. With 8-hour shifts, a backward step such as an evening followed by the next day's 07:00 start leaves 8 hours. See forward rotating schedules.
Leave a real break after a run of nights. A 2006 workplace safety article suggests at least 24 to 48 hours off when someone rotates off nights.
Check trades the way you check the original schedule. A swap can create a quick return the published schedule did not have. See what a shift swap policy should check.
Count every site. A physician who works at two hospitals can have a quick return that neither schedule shows on its own. See one schedule across two hospitals.
Check one gap or a whole month with the rest between shifts calculator.

In Capillary scheduling, saving and publishing check each person's minimum rest, including shifts they work at another site, and trades are checked for rest and overlap before anyone agrees. Clinicians can bring in a schedule from any scheduling app with its calendar link and see their quick returns in My hours.

Common questions

Is 8 hours between shifts allowed?: In the EU the minimum daily rest is 11 consecutive hours, though hospitals can use exceptions that give equivalent rest later. ACGME says residents should have 8 hours off, and emergency medicine residents need time off at least as long as the shift they just worked. ACEP's statement for emergency physicians gives no hour figure.
Does 11 hours off mean 11 hours of sleep?: No. The 11 hours run from the end of one shift to the start of the next, so the commute, meals and winding down all come out of that time.
How can I find quick returns in my own schedule?: Enter your shifts in the rest between shifts calculator, or bring your calendar link into My hours, which shows every gap under 11 hours.

Build your ED schedule with rest checked on every save.

Capillary checks role, overlapping shifts and rest, including shifts at other sites, before anything is published or traded.

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