The shift plan, rota or roster (esp. British) is the central component of a shift schedule in shift work.[1] The schedule includes considerations of shift overlap, shift change times and alignment with the clock, vacation, training, shift differentials, holidays, etc. The shift plan determines the sequence of work (W) and free (F) days within a shift system.
A notation used often identifies day (D), swing (S) and night (N) shifts for the W days and O (off) for rest days.
W
work days
D
day shift, 1st shift, early shift
This shift often occurs from either 06:00 or 07:00 to either 14:00 or 15:00 for eight-hour shifts, and from 06:00 to 18:00 for twelve-hour shifts.
S
swing shift, 2nd shift, late shift, afternoon shift
This shift often occurs from either 14:00 or 15:00 to either 22:00 or 23:00 for eight-hour shifts, and is not used with twelve-hour shifts.
N
night shift, 3rd shift, graveyard shift
This shift often occurs from either 22:00 or 23:00 to either 06:00 or 07:00 for eight-hour shifts, and from 18:00 to 06:00 for twelve-hour shifts.
F
free days
O
days off
This is defined as a day on which a shift does not begin.
A~F
work teams (starts from A as first team)
Note that a worker transitioning from N to O works for the first six or seven hours of the first day "off". Thus, when days off follow night shifts, the first one or more days "off" are, in fact, days of recovery from lack of nighttime sleep. This daily notation refers to the start of a shift. If a shift starts at 23:00, then this is a W day even though only one hour is worked. The day after this shift is an F day if no shift starts on this day, though many hours have been worked from midnight on.
One shift system may allow many shift plans. For example, the twelve-hour, 2nW:2nF system with n = 1 allows twelve different plans in three serially-identical sets. Within a set, DONO has the same sequence as NODO. DNOO is the preferred sequence because days off follow night work and there are two consecutive days off.
3-day shift plans
Prior to 2014, the U.S. Navy used a three shift system with an 18-hour day instead of a 24-hour day. The 24-hour period was divided into four shifts: 00:00-06:00, 06:00-12:00, 12:00-18:00, and 18:00-00:00. A sailor stood watch on their shift. During the off shift there is time to perform maintenance, study for qualifications, and handle collateral duties. During off time the sailor has time to sleep, relax, and perform personal tasks, such as laundry. With sufficient personnel, a given watchstation may benefit from a fourth man (the midnight cowboy or "Balls-to-6"). He would stand the same 6-hour watch in a given 24-hour period, usually from midnight to 06:00 (hence the midnight portion of the name, often shortened to cowboy) and the normal watchstander would then be free. This gave rise to a schedule of six on, twelve off, six on, thirty off, six on, twelve off.
Beginning in 2014, the Submarine Forcebegan shifting to a 24-hour day, with watches split into 8 hours on, 16 hours off. This does have the side effect of sailors assigned to a certain shift having the same meals every day, and so the shifts are periodically rotated in order to provide variety.
The Surface Fleetbegan its shift in 2017, transitioning from their "five and dimes" approach of 5 hours on, 10 hours off.
This does not apply to the attached air wing, which will work a 12 on, 12 off schedule 7 days a week.
Navy three-shift example
Time
Mon
Tue
Wed
Thu
Fri
Sat
Sun
on
watch
off
AW
on
watch
off
AW
on
watch
off
AW
on
watch
off
AW
on
watch
off
AW
on
watch
off
AW
on
watch
off
AW
06:00–12:00
C
A
B
D
B
C
A
D
A
B
C
D
C
A
B
D
B
C
A
D
A
B
C
D
C
A
B
D
12:00–18:00
B
C
A
E
A
B
C
E
C
A
B
E
B
C
A
E
A
B
C
E
C
A
B
E
B
C
A
E
18:00–06:00
A
B
C
E
C
A
B
E
B
C
A
E
A
B
C
E
C
A
B
E
B
C
A
E
A
B
C
E
Plan
Run 1
Run 2
Run 3
4-day shift plans
In the 12/24/12/48 or 12/24 plan, employees work in shifts of 12 hours; first a "daily shift" (e.g. 06:00 to 18:00), followed by 24 hours' rest, then a "nightly shift" (18:00 to 06:00), finishing with 48 hours' rest. This plan needs four teams for full coverage, and makes an average 42-hour workweek. The pattern repeats in a 4-week cycle, i.e. over 28 days, and has 14 shifts per employee therein.
12/24/12/48 shift example
Time
Week 1
Week 2
Week 3
Week 4
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Daily
06:00–18:00
a
C
D
B
a
C
D
B
a
C
D
B
a
C
D
B
a
C
D
B
a
C
D
B
a
C
D
B
Nightly
18:00–06:00
B
a
C
D
B
a
C
D
B
a
C
D
B
a
C
D
B
a
C
D
B
a
C
D
B
a
C
D
Plan
Run 1
Run 2
Run 3
Run 4
Run 5
Run 6
Run 7
5-day shift plans
In four on, one off the employee only gets one day off after a work streak of four days. There are 28 shifts per employee in a five-week cycle (i.e. 35 days). This adds up to an average of 42 hours worked per week with 7½-hour shifts. This plan is mainly adopted by industries in which companies prefers to work for all days of the week, often with four (overlapping) shifts per day, and[why?] where laws do not let employees work for 12 hours a day for several days. Five groups of employees are needed to cover a specific shift on all days, where each group gets a different day off.
two on, one off example with 8-hour shift
Time
Week 1
Week 2
Week 3
Week 4
Week 5
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
08:00–15:30
A
A
A
A
off
A
A
A
A
off
A
A
A
A
off
A
A
A
A
off
A
A
A
A
off
A
A
A
A
off
A
A
A
A
off
B
B
B
off
B
B
B
B
off
B
B
B
B
off
B
B
B
B
off
B
B
B
B
off
B
B
B
B
off
B
B
B
B
off
B
C
C
off
C
C
C
C
off
C
C
C
C
off
C
C
C
C
off
C
C
C
C
off
C
C
C
C
off
C
C
C
C
off
C
C
D
off
D
D
D
D
off
D
D
D
D
off
D
D
D
D
off
D
D
D
D
off
D
D
D
D
off
D
D
D
D
off
D
D
D
off
E
E
E
E
off
E
E
E
E
off
E
E
E
E
off
E
E
E
E
off
E
E
E
E
off
E
E
E
E
off
E
E
E
E
Plan
Run 1
Run 2
Run 3
Run 4
Run 5
Run 6
Run 7
6-day shift plans
In four on, two off the employee gets two days off. There are 28 shifts per employee in a six-week cycle (i.e. 42 days), this adds up to an average of 56 hours worked per week with 12-hour shifts, or 37+1⁄3 hours per week with 8-hour shifts. Three groups are needed for each time span, i.e. to cover the whole day and week a company needs 6 groups for 12-hour shifts or 9 groups for 8-hour shifts. This plan is mainly adopted by industries in which employees do not engage in much physical activity.
Four on, two off example with one 8-hour shift per day
Shift
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
07:00–19:00
A
A
A
A
off
off
A
A
A
A
off
off
A
A
A
A
off
off
A
A
A
A
off
off
A
A
A
A
off
off
A
A
A
A
off
off
A
A
A
A
off
off
B
B
off
off
B
B
B
B
off
off
B
B
B
B
off
off
B
B
B
B
off
off
B
B
B
B
off
off
B
B
B
B
off
off
B
B
B
B
off
off
B
B
off
off
C
C
C
C
off
off
C
C
C
C
off
off
C
C
C
C
off
off
C
C
C
C
off
off
C
C
C
C
off
off
C
C
C
C
off
off
C
C
C
C
Plan
Run 1
Run 2
Run 3
Run 4
Run 5
Run 6
Run 7
Week shift plans
Three-shifts
The three-shift system is the most common plan for five 24-hour days per week. The "first shift" often runs from 06:00 to 14:00, "second shift" or "swing shift" from 14:00 to 22:00 and a "third shift" or "night shift" from 22:00 to 06:00, but shifts may also have different length to accommodate for workload, e.g. 7, 8 and 9 or 6, 8 and 10 hours. To provide coverage 24/7, employees have their days off ("weekends") on different days.
All of the shifts have desirable and less desirable qualities. First shift has very early starts, so time in the evening before is heavily cut short. The second shift occupies the times during which many people finish work and socialize. The third shift creates a situation in which the employee must sleep during the day.
Three-shift example
Time
Mon
Tue
Wed
Thu
Fri
Sat
Sun
07:30–14:30
A
A
A
A
A
off
off
14:30–22:30
B
B
B
B
B
off
off
22:30–07:30
C
C
C
C
C
off
off
To provide an overlap in shifts, some employers may require one of the shifts to work four 10-hour shifts per week (as opposed to five 8-hour shifts, both are 40 hours per week). In that scenario, the night shift might extend from 21:00 to 07:00, but the night- shift would have nearly four days off (86 hours) between work weeks. This change, along with first shift moving a half-hour later, or second moving a half-hour earlier, ensures at least a half-hour overlap between shifts, which might be desirable if the business is open to the public to ensure that customers continue to be served during a shift change.[2]
Some U.S. states, such as California,[2] accommodate this arrangement by allowing the employee to be paid at their regular rate (as opposed to time-and-a-half, or an overtime rate, that would normally be required for any time past 8 hours) for the 10-hour shift, calling this an "alternative workweek".
Four on, three off
In four on, three off, each employee works four days and gets a three-day weekend. For some types of manufacturing, this is a win-win arrangement. For example, a paint company had been making 3 batches of paint per day, Monday through Friday (3 × 5 = 15). They changed to making 4 batches of paint, Monday through Thursday (4 × 4 = 16). Total worker hours remained the same, but profits increased. In exchange for two additional hours of work per day, over 4 days, workers got an additional day off every week. See also the book, 4 Days, 40 Hours.
Four on, three off example with 10-hour shifts (in comparison to five-day week schemes)
Time
Mon
Tue
Wed
Thu
Fri
Sat
Sun
4-day week
08:00–18:00
10 h
10 h
10 h
10 h
off
off
off
4½-day week
08:00–17:00
9 h
9 h
9 h
9 h
4 h
off
off
5-day week
09:00–17:00
8 h
8 h
8 h
8 h
8 h
off
off
Continental plan
Continental plan, adopted primarily in central Europe, is a rapidly changing three-shift system that is usually worked for seven days straight, after which employees are given time off, e.g. 3 mornings, 2 afternoons and then 2 nights.
Continental shift example
Time
Mon
Tue
Wed
Thu
Fri
Sat
Sun
06:00–14:00
A
A
A
C
C
B
B
14:00–22:00
B
B
B
A
A
C
C
22:00–06:00
C
C
C
B
B
A
A
24*7 shifts
In the 24*7 plan there are 24 consecutive shifts of 7 hours per week, hence covering 24/7. With 4 groups and 6 shifts per group, the work time is 42 hours per week. Several sub-patterns are possible, but usually each group is responsible for one of four time slots per day. Each of these is 6 hours long and if a shift begins in their time slot, a group has to work it. This way there are 14, 21 or 42 hours of rest between shifts, every group gets one whole day off. Shifts can be swapped to make double-shifts and increase the minimum time of rest.
24*7 example with double shifts and long rests around them
Split shift is used primarily in the catering, transport, hotel, and hospitality industry. Waiters and chefs work for four hours in the morning (to prepare and serve Lunch), then four hours in the evening (for an Evening meal). The average working day of a chef on split shifts could be 10:00 to 14:00 and then 17:00 to 21:00
Split shift example
Shift
Time
Mon
Tue
Wed
Thu
Fri
Sat
Lunch
10:00–14:00
on
on
on
on
on
off
off
Break
14:00–17:00
off
off
off
off
off
off
off
Dinner
17:00–21:00
on
on
on
on
on
off
off
Earlies and lates
Earlies and lates is used primarily in industries such as customer service (help desk, phone-support), convenience stores, child care (day nurseries), and other businesses that require coverage greater than the average 09:00 to 17:00 working day in the UK, but no 24/7 coverage either. Employees work in two shifts that largely overlap, such as early shift from 08:00 to 16:00 and late shift from 10:00 to 18:00
Earlies and lates shift example
Shift
Time
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Morning
Evening
In businesses where two shifts are necessary to cover the day, earlies and lates may be combined with one double shift per week per worker. Six 7-hour shifts in five days and seven 6-hour shifts in six days both result in 42 hours per week.
Earlies and lates with double shift example, six 7-hour shifts in five days, ten groups
Shift
Time
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Earlies
08:00–15:00
ABCDE F
ABCDE G
ABCDE H
ABCDE I
ABCDE J
Off
Off
Lates
15:00–22:00
A FGHIJ
B FGHIJ
C FGHIJ
D FGHIJ
E FGHIJ
Off
Off
Earlies and lates with double shift example, seven 6-hour shifts in six days, twelve groups
Shift
Time
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Earlies
08:00–14:00
ABCDEF G
ABCDEF H
ABCDEF I
ABCDEF J
ABCDEF K
ABCDEF L
Off
Lates
14:00–20:00
A GHIJKL
B GHIJKL
C GHIJKL
D GHIJKL
E GHIJKL
F GHIJKL
Off
28-hour day
The 6-day week with 28 hours per "day" is a general concept for full week coverage where the 168 hours of the week are grouped differently. It can be used as a base for several shift plans, e.g. four 7-hour shifts per day where every employee works six shifts for a total of 42 hours per week.
28-hour day example
Day
1
2
3
4
5
6
Start
Mon 00:00
Tue 04:00
Wed 08:00
Thu 12:00
Fri 16:00
Sat 20:00
1st shift
A
E
C
A
E
C
2nd shift
B
F
D
B
F
D
3rd shift
C
A
E
C
A
E
4th shift
D
B
F
D
B
F
21-hour day
The 8-day week with 21 hours per "day" is a general concept for full week coverage where the 168 hours of the week are grouped differently. It can be used as a base for several shift plans, e.g. three 7-hour shifts per day where every employee works six shifts for a total of 42 hours per week, but to get whole days off groups work alternating double shifts.
Four on, four off is a shift plan that is being heavily adopted in the United Kingdom and in some parts of the United States.[citation needed] An employee works for four days, usually in 12-hour shifts (7:00 to 7:00) then has four days off. While this creates a "48-hour week" (42-hour average over the year) with long shifts, it may be preferred because it shrinks the work week down to four days, and then gives the employee four days' rest—double the time of a usual weekend. Due to the plan, employees effectively work an eight-day week, and the days they work vary by "week". As with three-shift systems, most employees stay with the same shift rather than cycling through them.
Four on, four off example for two different schedules
four on, four off
ten-fourteen
Week 1
Week 2
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
...
07:00–19:00
08:00–18:00
A
A
A
A
C
C
C
C
...
19:00–07:00
18:00–08:00
B
B
B
B
D
D
D
D
...
A variation of the four on, four off plan is the two days, two nights, four off plan of working, or 2-2-4. Like the previous example it requires four separate teams to maintain 24/7 coverage. The difference is that all employees work both day and night shifts. Usually employees have to work 12-hour shifts from 06:00 to 18:00 on day shifts and from 18:00 to 06:00 on nights. This plan is currently in use in the UK by HM Coastguard and some ambulance services.
Two days, two nights, four off example
Time
Week 1
Week 2
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
...
06:00–18:00
A
A
B
B
C
C
D
D
...
18:00–06:00
D
D
A
A
B
B
C
C
...
A similar shift pattern is used by fire services such as London Fire Brigade, where the night shifts are longer than the day shifts.[3][4] This may be referred to as a ten-fourteen roster, if the day shift lasts for ten hours and the night shift lasts fourteen. Extended night shifts such as these are often a double edged sword; on one hand crews on slower weeknight shifts, or those in areas of low demand will receive excellent levels of rest (when there are no calls for emergency services, crews are encouraged to rest if required). Conversely, those employed on high demand days such as weekend nights, or in particularly high demand areas, will often be required to be awake or working for their entire rostered shift. However, due to the scheduled nature, most ambulance and fire employees can attempt to obtain sufficient rest before or after a particularly busy 14-hour night shift.
10-day shift plans
The 6 on, 4 off plan is commonly used in British police forces.[5][6][7] The pattern worked consists of 2 early shifts, 2 late shifts, 2 night shifts and 4 days off. Shifts last 9–10 hours, creating some overlap between the 5 teams.
6 on, 4 off example
Shift
Week 1
Week 2
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
...
Early
A
A
B
B
C
C
D
D
E
E
...
Late
E
E
A
A
B
B
C
C
D
D
...
Night
D
D
E
E
A
A
B
B
C
C
...
12-day shift plans
The 6 on, 6 off plan consists of 3 days and 3 nights of work, then 6 days off. These will alternate between other crews, also known as teams, for a full 24/7 operation. The 12-day pattern repeats in a cycle of twelve weeks, i.e. 84 days.
6 on, 6 off example
Shift
Week 1
Week 2
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
...
06:00 to 18:00
A
A
A
B
B
B
C
C
C
D
D
D
...
18:00 to 06:00
D
D
D
A
A
A
B
B
B
C
C
C
...
Fortnight shift plans
Panama Schedule
The Panama plan follows a 2-2-3 pattern throughout a fortnight, in which shift workers generally are allowed every other Friday, Saturday, and Sunday off, with two additional days off during the week, although this may differ depending on organization and industry. The most common form utilizes four shifts, each working twelve hours, with two shifts generally paired together: A working days and B working nights while C and D are off, and vice versa. It is not uncommon for shifts to rotate between days and nights, most often with six months spent on nights and six on days. This shift is sometimes known as the 2-2-3 or "two, two and three".
Panama schedule example
Shift
Week 1
Week 2
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
06:00 to 18:00
A
A
C
C
A
A
A
C
C
A
A
C
C
C
18:00 to 06:00
B
B
D
D
B
B
B
D
D
B
B
D
D
D
7-day fortnight plan
In the 7-day fortnight plan or 2-3-2 plan, employees work their allotted hours within 7 days rather than 10 in a fortnight, i.e. fourteen days and nights. Therefore, 41 hours per week equate to 82 hours per fortnight, which is worked in seven days, at 11–12 hours per shift. This shift structure is used in the broadcast television industry, as well as many law enforcement agencies, as well as health care fields such as nursing and clinical laboratories in the US.
7-day fortnight shift example
Shift
Week 1
Week 2
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
08:00–20:00
A
A
C
C
C
A
A
C
C
A
A
A
C
C
20:00–08:00
B
B
D
D
D
B
B
D
D
B
B
B
D
D
One of the advantages of using this plan is each shift pair, for example A and B, will get time off on weekends alternatively, because the schedule is fixed and does not drift.
10-day fortnight plan
A 10-day fortnight plan uses six shifts. Each shift works for seven days straight for their first week. On their "off week", they can choose three days to come in, to support other non-shifted departments, fill gaps in coverage, or participate in training.
10-day fortnight shift example
Shift
Week 1
Week 2
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
00:00–08:00
A
A
A
A
A
A
A
D
D
D
D
D
D
D
08:00–16:00
B
B
B
B
B
B
B
E
E
E
E
E
E
E
16:00–00:00
C
C
C
C
C
C
C
F
F
F
F
F
F
F
D, E, and F choose 3 shifts to work
A, B, and C choose 3 shifts to work
Five and two
The five and two or 3-2-2 plan provides 24/7 coverage using 4 crews and 12-hour shifts over a fortnight. Average hours is 42 per week but contains a 60-hour week which can be challenging.
7-day fortnight shift example
Shift
Week 1
Week 2
Week 3
Week 4
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Sun
08:00–20:00
D
D
D
B
B
D
D
B
B
B
A
A
B
B
A
A
A
C
C
A
A
C
C
C
B
B
C
C
20:00–08:00
A
A
A
C
C
A
A
C
C
C
D
D
C
C
B
B
B
D
D
B
B
D
D
D
A
A
D
D
5/4/9s
5/4/9s or Five/Four Nines is a mix of 5-day and 4-day work weeks. Employees work in two-week cycles. Week 1, the employee works 4 days of 9 hours followed by 1 day of 8 hours with 2 days off (i.e. 44 hours). Week 2, the employee works 4 days of 9 hours with 3 days off (i.e. 36 hours).
Like 8 hours a day for 5 days a week, this plan works to 80-hours in a two-week pay-period. Since employees work on nine days per cycle, this plan is also referred to as 9/80. The benefit to working an extra hour a day gives you a normal 2-day weekend followed by a long 3-day weekend the next. Typical working hours for this type of shift would be 06:00 to 15:30 (9 hours with 30 minutes lunch) and 06:00 to 14:30 (8 hours with 30 minutes lunch) on the 8-hour work day. Often the employer will alter the starting times (e.g., start at 07:00 or 08:00).
5/4/9s shift example
Week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Week 1
9 h
9 h
9 h
9 h
8 h
off
off
Week 2
9 h
9 h
9 h
9 h
off
off
off
A variation, early weekend or 4½-day week, has the employees work every Friday, but only for 4 hours each. Their weekend thus starts with the Friday lunch break.
Long-term shift plans
DuPont 12-hour rotating plan
The DuPont 12-hour rotating plan provides 24/7 coverage using 4 crews and 12-hour shifts while providing a week off. Average hours is 42 per week but contains a 72-hour week which can be challenging. It is used in several manufacturing industries in the US. Companies that have gone to this schedule have noticed a decrease in accidents plus more rest for employees, less call ins, and more coverage when crews are short handed. In all the schedule is designed to improve safety. A particular advantage of this plan is that it can readily be slewed to fit business requirements. For example, if less coverage is required on a Sunday, stand-alone shifts are avoided by scheduling the fourth night and first day of four on that day. This also has the additional benefit of the quick turnaround day between three shift days and nights also falling on a Sunday.
DuPont 12-hour rotating shift example
Time
Week 1
Week 2
Week 3
Week 4
M
T
W
R
F
S
S
M
T
W
R
F
S
S
M
T
W
R
F
S
S
M
T
W
R
F
S
S
07:00–19:00
D
D
D
C
C
C
C
A
A
A
D
D
D
D
B
B
B
A
A
A
A
C
C
C
B
B
B
B
19:00–07:00
A
A
A
A
D
D
D
B
B
B
B
A
A
A
C
C
C
C
B
B
B
D
D
D
D
C
C
C
To balance pay into 36- and 48-hour weeks, many US companies shift the DuPont Schedule so the seven-day rest period ends on Friday night.
DuPont 12-hour rotating shift example 2
Time
Week 1
Week 2
Week 3
Week 4
M
T
W
R
F
S
S
M
T
W
R
F
S
S
M
T
W
R
F
S
S
M
T
W
R
F
S
S
07:00–19:00
B
B
B
B
D
D
D
C
C
C
C
A
A
A
D
D
D
D
B
B
B
A
A
A
A
C
C
C
19:00–07:00
D
C
C
C
A
A
A
A
D
D
D
B
B
B
B
A
A
A
C
C
C
C
B
B
B
D
D
D
To allow 3 full days off following a shift of nights, the day off between three days and three nights is removed. This example allows for a recovery day after 3 nights before a weekend off and for some workers more appropriately balances work/life.
DuPont 12-hour rotating shift example 3
Time
Week 1
Week 2
Week 3
Week 4
M
T
W
R
F
S
S
M
T
W
R
F
S
S
M
T
W
R
F
S
S
M
T
W
R
F
S
S
07:00–19:00
B
B
B
B
D
D
D
C
C
C
C
A
A
A
D
D
D
D
B
B
B
A
A
A
A
C
C
C
19:00–07:00
C
C
C
A
A
A
A
D
D
D
B
B
B
B
A
A
A
C
C
C
C
B
B
B
D
D
D
D
Seven-day eight-hour rotating plan
The seven-day eight-hour rotating plan provides 24/7 coverage using 8-hour shifts with 5 crews. It consists of a "morning shift" from 07:00 to 15:00, a "swing shift" from 15:00 to 22:30 and a "night shift" from 22:30 to 07:30. Each shift works for five days straight. The 8-hour shifts allow vacations and absences to be covered by splitting shifts or working double shifts. The run of day shifts is 56 hours, but the 8-hour shift provides time for some socializing after work.
This plan was once common in the pulp and paper industry in the Western United States but has been largely replaced by an 8 days, 8 swing, 5 nights, 9 off, 8-hour rotation.
Graveyard shift, night shift, or third shift means a shift of work running through the early hours of the morning, especially shifts starting around midnight. The origin of this phrase is uncertain. According to Michael Quinion it is an "evocative term for the night shift … when … your skin is clammy, there's sand behind your eyeballs, and the world is creepily silent, like the graveyard."[8]
Employees who work on an on-call basis have no regular schedule. They agree as a condition of employment to report to work when they are called, 24 hours a day, 7 days a week. This is particularly common in American railroad employment, especially for train crews. Other groups of workers may be on-call from home for some days and working normal shifts for others, or will work during normal business hours and then remain on-call from home for the rest of that night until the following morning (this working pattern is common for senior doctors, for example).
Firefighting schedules
In many North American fire departments, firefighters work 24-hour shifts. They are authorized to sleep in the fire station during the time spent on night shift. Most departments split the 168-hour-long week between 3 or 4 work groups (sometimes referred to as 'shifts' or 'platoon groups'), resulting in a 56- or 42-hour workweek, respectively. Some departments reduce the average workweek by scheduling an extra day off for each firefighter in the work group, frequently reducing a 56-hour workweek to a 48-hour workweek by scheduling a 24-hour "Kelly Day" every three weeks. Departments have many options for scheduling firefighters for coverage. One option is 24 on/48 off, where a firefighter will work 24 hours and have 48 hours off, regardless of the day of the week or the holidays. Often they will be scheduled in an A–B–C pattern. Thus, a firefighter will be assigned to A, B or C shift and work whenever that letter is on the calendar.
Most departments have found that a 24-hour work shift, with opportunistic sleeping between calls for service, is a valid means of avoiding some of the health and cognitive problems associated with shift work.
Three-platoon schedules
The most basic three-platoon schedule is a straight rotation of 24-hour shifts among three platoon groups. This rotation limits time off to 48 hours in a row, less than 66 hours off in a row most workers get each weekend. Workers on this schedule only get one short weekend off every three weeks. Twenty-four hours off-duty is also the minimum required to completely recover from a period of acute sleep deficit.[12]
24/48 pattern
Week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Week 1
A
B
C
A
B
C
A
Week 2
B
C
A
B
C
A
B
Week 3
C
A
B
C
A
B
C
Another option is known as a California roll, where some shifts will be close together but allow for several days off. This option gives a 96-hour break every 9th day, which is contiguous to the conventional weekend on two of nine weekends, with a third weekend providing a break that starts on Saturday morning. There is an opportunity to accumulate sleep debt over the three days of work, however this debt should be completely cleared over the four-day break. The nine-day rota that is repeated to fill the calendar.
California roll shift schedule
Week
Time
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Week 1
07:00–07:00
A
B
A
C
A
C
B
Week 2
07:00–07:00
C
B
A firefighter will work 24 hours on, 24 off, 24 on, 24 off, 24 on, 96 hours (4 days) off.
This rotation reduces the chronic sleep deficit accrued over the first two work days at the expense of a shorter long break. This schedule's long break coincides with a standard weekend exactly once every nine weeks. The four-day break could be retained by working a fourth day in the rotation - XOXOOXOXOOOO.
Modified California Roll
Week
Time
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Week 1
07:00–07:00
A
B
A
B
C
A
C
Week 2
07:00–07:00
A
B
C
B
C
A firefighter will work one day, off one, work one, off two, work one, off four days.
A number of departments have investigated further work consolidation by allowing for a 48-hour work shift. Careful demand management would be required to avoid acute sleep deficit, however, firefighters should return to work fully recovered from the previous shift.[13]
Kenneth B. Ellerbe chief of the District of Columbia Fire and Emergency Medical Services Department has proposed a schedule where firefighters work three-day shifts, followed by three night shifts, followed by three days off.[14] It is likely that such a schedule would impact all four alertness factors associated with shift work, and result in a threat to public safety. It would result in exactly one break coinciding with the standard weekend every nine weeks. DDDNNNOOODDDNNNOOO
Four-platoon schedules
The most basic four-platoon schedule is a straight rotation of 24-hour work shifts between four work groups or platoons. This schedule works 48 hours per week for three weeks and 24 hours the fourth week, averaging 42 hours per week.
24/72 pattern
Week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Week 1
A
B
C
D
A
B
C
Week 2
D
A
B
C
D
A
B
Week 3
C
D
A
B
C
D
A
Week 4
B
C
D
A
B
C
D
Another variation of the 24-hour shift schedule is a 4-platoon system, averaging 42 hours/week. Thus, the schedule is 24 on, 48 off, 24 on, 96 off, on a 4-day rotation.
24/48/24/96 pattern
Week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Week 1
A
D
B
A
C
B
D
Week 2
C
A
D
B
A
C
B
Week 3
D
C
A
D
B
A
C
Week 4
B
D
C
A
D
B
A
Week 5
C
B
D
C
A
D
B
Week 6
A
C
B
D
C
A
D
Week 7
B
A
C
B
D
C
A
Split day and night shifts
In other fire departments, firefighters work shorter shifts, such as a mix of 10-hour day shifts and 14-hour night shifts.[12] The advantage is that firefighters have shorter working hours. The disadvantage is that they may sometimes have only 12 hours to recover between one night shift and the next. The 2005 Canadian Firefighter study comparing two models with 24-hour shifts with three models requiring at least three consecutive night shifts, found that consecutive nights were shown to be more deleterious to performance than a single, long shift. Performance effectiveness 75% after two consecutive nights and lower after three, compared to 78% for a 24-hour shift. If the schedule induces sleep deficit in a subsequent day shift, this performance would be worse.
On the 2-2-4 schedule, firefighters work two 10-hour days, two 14-hour nights, and then have four days off. This schedule's long break aligns with the conventional weekend for exactly two weeks out of eight. The majority of Australian fire brigades use this schedule (which is locally referred to as the '10/14' or '4 on, 4 off' roster) [15]
The rota is: DDNNOOOO.
The 2-2-3 schedule is also known as the Panama Schedule, however, when firefighters work it, the shifts rotate from day to night between every break. Since the firefighters have a two-day break before any nights worked, they do not start the series of nights with an employment-related sleep deficit. They do work three nights in a row, which would result in chronic sleep deficit if alarms are received on each night, however, the third night is always a Sunday night, which is often less busy than other nights of the week. This schedule allows for a long break every other weekend.
Delayed sleep phase disorder (DSPD), more often known as delayed sleep phase syndrome and also as delayed sleep–wake phase disorder, is the delaying of a person's circadian rhythm compared to those of societal norms. The disorder affects the timing of biological rhythms including sleep, peak period of alertness, core body temperature, and hormonal cycles.
Overtime is the amount of time someone works beyond normal working hours. The term is also used for the pay received for this time. Normal hours may be determined in several ways:
The 35-hour workweek is a labour reform policy adopted in France in February 2000, under Prime Minister Lionel Jospin's Plural Left government. Promoted by Minister of Labour Martine Aubry, it was adopted in two phases: the Aubry 1 law in June 1998 and the Aubry 2 law in January 2000. The previous legal working week was 39 hours, established by President François Mitterrand, also a member of the Socialist Party. The 35-hour working week had been on the Socialist Party's 1981 electoral program, titled 110 Propositions for France, but was not pursued because of the poor state of the economy.
Working (laboring) time is the period of time that a person spends at paid labor. Unpaid labor such as personal housework or caring for children or pets is not considered part of the working week.
Flextime is a flexible hours schedule that allows workers to alter their workday and decide/adjust their start and finish times. In contrast to traditional work arrangements that require employees to work a standard 9a.m. to 5p.m. day, flextime typically involves a "core" period of the day during which employees are required to be at work, and a "bandwidth" period within which all required hours must be worked. The working day outside of the "core" period is "flexible time", in which employees can choose when they work, subject to achieving total daily, weekly or monthly hours within the "bandwidth" period set by employers, and subject to the necessary work being done. The total working time required of employees on flextime schedules is the same as that required under traditional work schedules.
Shift work is an employment practice designed to make use of, or provide service across, all 24 hours of the clock each day of the week. The practice typically sees the day divided into shifts, set periods of time during which different groups of workers perform their duties. The term "shift work" includes both long-term night shifts and work schedules in which employees change or rotate shifts.
Night service, sometimes also known as owl service, is a mode of public transport service operated during the night hours. As an intermediate approach – between providing full service around the clock and stopping services altogether – it provides more limited service during times of lower passenger volume, saving resources and allowing for maintenance on primary transportation systems. They typically offer fewer routes and less frequent service. Night-based services may be differently branded compared to daytime services. Examples are London and Chicago, where overnight buses are prefixed with an "N" for "night". Another common way to distinguish night services from their daytime counterparts is dark-colored line numbers. Some cities apply a different fare structure for night services from their daytime services.
A full-time job is employment in which workers work a minimum number of hours defined as such by their employer.
The weekdays and weekend are the complementary parts of the week devoted to labour and rest, respectively. The legal weekdays, or workweek, is the part of the seven-day week devoted to working. In most of the world, the workweek is from Monday to Friday and the weekend is Saturday and Sunday. A weekday or workday is any day of the working week. Other institutions often follow this pattern, such as places of education. The constituted weekend has varying definitions, based on determined calendar days, designated period of time, and/or regional definition of the working week. Sometimes the term "weekend" is expanded to include the time after work hours on the last workday of the week.
Medical resident work hours refers to the shifts worked by medical interns and residents during their medical residency.
Shift work sleep disorder (SWSD) is a circadian rhythm sleep disorder characterized by insomnia, excessive sleepiness, or both affecting people whose work hours overlap with the typical sleep period. Insomnia can be the difficulty to fall asleep or to wake up before the individual has slept enough. About 20% of the working population participates in shift work. SWSD commonly goes undiagnosed, so it's estimated that 10–40% of shift workers have SWSD. The excessive sleepiness appears when the individual has to be productive, awake and alert. Both symptoms are predominant in SWSD. There are numerous shift work schedules, and they may be permanent, intermittent, or rotating; consequently, the manifestations of SWSD are quite variable. Most people with different schedules than the ordinary one might have these symptoms but the difference is that SWSD is continual, long-term, and starts to interfere with the individual's life.
The Hereford and Worcester Fire and Rescue Service (HWFRS) is the statutory fire and rescue service covering Herefordshire and Worcestershire in the West Midlands region of England. The service covers an area of 1,514 square miles (3,920 km2), and a population of around 780,000 people.
Edmonton Fire Rescue Services is the fire department for the city of Edmonton, Alberta, Canada.
Overtime rate is a calculation of hours worked by a worker that exceed those hours defined for a standard workweek. This rate can have different meanings in different countries and jurisdictions, depending on how that jurisdiction's labor law defines overtime. In many jurisdictions, additional pay is mandated for certain classes of workers when this set number of hours is exceeded. In others, there is no concept of a standard workweek or analogous time period, and no additional pay for exceeding a set number of hours within that week.
The 4-Hour Workweek: Escape 9–5, Live Anywhere, and Join the New Rich (2007) is a self-help book by Timothy Ferriss, an American writer, educational activist, and entrepreneur. It deals with what Ferriss refers to as "lifestyle design", and repudiates the traditional "deferred" life plan in which people work grueling hours and take few vacations for decades and save money in order to relax after retirement. The book spent four years on The New York Times Best Seller List, was translated into 40 languages, and sold around 2.1 million copies.
Hours of Service (HOS) regulations are issued by the Federal Motor Carrier Safety Administration (FMCSA) and govern the working hours of anyone operating a commercial motor vehicle (CMV) in the United States. These regulations apply to truck drivers, commercial and intercity bus drivers, and school bus drivers who operate CMVs. These rules limit the number of daily and weekly hours spent driving and working, and regulate the minimum amount of time drivers must spend resting between driving shifts. For intrastate commerce, the respective state's regulations apply.
4 Days, 40 Hours is a 1971 book by Riva Poor reporting on a "revolution in work and leisure" from a rearranged work week with four days of 10 hours each. In some cases, the book claims, companies can increase production and profit while giving employees more time off.
A four-day workweek is an arrangement where a workplace or place of education has its employees or students work or attend school, college or university over the course of four days per week rather than the more customary five. This arrangement can be a part of flexible working hours, and is sometimes used to cut costs.
Work–life balance in the United States is having enough time for work and enough time to have a personal life in the United States. Related, though broader, terms include lifestyle balance and life balance. The most important thing in work and life is the personal ability to demonstrate and meet the needs of work and personal life in order to achieve goals. People should learn to deal with role engagement management, role conflict management and managing life needs to achieve balance. Balance is about how to properly achieve the desired work and life satisfaction and needs in a conflict situation.
Studies, which include laboratory investigations and field evaluations of population groups that are analogous to astronauts, provide compelling evidence that working long shifts for extended periods of time contributes to sleep deprivation and can cause performance decrements, health problems, and other detrimental consequences, including accidents, that can affect both the worker and others.
↑ Straif, Kurt; Baan, Robert; Grosse, Yann; Secretan, Béatrice; Ghissassi, Fatiha El; Bouvard, Véronique; Altieri, Andrea; Benbrahim-Tallaa, Lamia; Cogliano, Vincent (2007). "Carcinogenicity of shift-work, painting, and fire-fighting". The Lancet Oncology. 8 (12): 1065–6. doi:10.1016/S1470-2045(07)70373-X. PMID19271347.
1 2 Paul MA, Miller JC (October 2005). "Consideration of 5 Canadian Forces Firefighter Shift Schedules" (Technical Report) (in English and French). Toronto: Defense R&D Canada.{{cite journal}}: Cite journal requires |journal= (help)
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