Night shift differential: how it is paid
A night shift differential is extra pay for hours worked at night. If you rotate between day and night blocks, it can make two paychecks for the same number of hours look quite different. This guide covers how differentials are usually set up, how they interact with overtime under U.S. federal law, and what to ask your payroll department. It is general information, not legal advice.
Is a night differential required?
Not by federal law. The Department of Labor says the Fair Labor Standards Act (FLSA) "does not require extra pay for night work"; it is a matter of agreement between the employer and the employee or the employee's representative, such as a union (DOL: Night Work). So whether you get one, how much, and for which hours comes from your employer's policy or your contract.
The common ways it is paid
| Type | Example | On a 12-hour night shift (11.5 paid hours, all at night) at $20 an hour |
|---|---|---|
| Dollars per hour | $2.00 per night hour | 11.5 × $2.00 = $23.00 extra |
| Percent of base rate | 10% of base for night hours | 11.5 × $2.00 (10% of $20) = $23.00 extra |
Policies also differ on which hours count. Some pay the differential only for hours inside a clock window (for example 6 p.m. to 6 a.m.); others pay it for every hour of a shift that is mostly at night. A swing shift from 2 p.m. to 2 a.m. earns a differential for the 8 hours from 6 p.m. to 2 a.m. (less any unpaid break taken in that time) under a 6 p.m. to 6 a.m. window rule, and possibly for none or all of them under other rules. Check which one your employer uses.
Why it raises your overtime rate
Federal regulations count shift differentials as part of the regular rate that overtime is based on (29 CFR 778.207(b)). The regular rate for a workweek is the total straight-time pay for the week divided by all hours worked that week (29 CFR 778.109). Overtime hours are then owed an extra half of that regular rate.
Worked example: in one workweek a 4-on/4-off worker works two day shifts and two night shifts of 11.5 paid hours each, at $20 an hour plus $2 for each night hour.
- Hours worked: 46, of which 23 at night and 6 over 40.
- Straight-time pay: 46 × $20 + 23 × $2 = $966.00.
- Regular rate: $966.00 ÷ 46 = $21.00 an hour.
- Overtime premium: 6 × 0.5 × $21.00 = $63.00.
- Gross for the week: $966.00 + $63.00 = $1,029.00.
Ignoring the differential when working out overtime would give a premium of 6 × $10 = $60.00, three dollars short. Some employers pay each overtime hour at 1.5 times that hour's own rate instead, which gives a slightly different total. Hitchday supports both methods, and the overtime guide shows the comparison.
Day and night rotations
On a rotation such as 4 days, 4 off, 4 nights, 4 off, your differential pay arrives in alternating paychecks, so a "night" paycheck can be noticeably larger than a "day" one for the same hours. A night shift that crosses midnight, a workweek boundary or the end of a pay period is split at that point, so part of its differential can land in the next workweek or the next paycheck.
Questions to ask payroll
- Is the differential a dollar amount or a percent, and of which rate?
- Which hours earn it: a fixed clock window, or the whole shift?
- Is it included in the regular rate when overtime is calculated?
- Do holidays, training or call-outs at night earn it too?
Using it in Hitchday
In the pay calculator, open Edit pay, then Night differential: choose dollars per hour or a percent of your base rate, and the clock window it applies to. Only hours worked inside that window earn it, and by default it is included in the regular rate when overtime is priced. The What makes up this paycheck section shows the night hours and dollars for each shift.
Your employer's policy, union contract and state law can differ from the examples here. If your pay looks wrong, ask your payroll department first, then contact the U.S. Department of Labor Wage and Hour Division or your state labor agency.