Most workers on an 8-hour shift know what time they start. Fewer know exactly when they're supposed to clock out after breaks, how much of their shift is paid, or when overtime kicks in if they stay late. An 8-hour shift calculator answers all three questions in seconds. Enter your start time and break duration, and you get your exact clock-out time, total paid hours, gross pay at your hourly rate, and an overtime alert if you're pushing past 40 hours for the week.

This guide covers the formula, FLSA federal break rules, state-specific break requirements, overtime thresholds, and the most common errors workers and managers make when calculating shift hours. Whether you're a nurse working 8-hour rotations, a warehouse worker punching in and out multiple times a day, or an employer building a weekly schedule, the calculation works the same way every time.

What Is an 8-Hour Shift Calculator and Why Does It Matter

An 8-hour shift calculator determines your clock-out time by adding 8 hours plus any unpaid break time to your shift start time, then calculates total paid hours, gross wages, and weekly overtime exposure based on the Fair Labor Standards Act (FLSA) threshold of 40 hours per workweek. Employees, managers, payroll administrators, HR departments, and hourly workers across every industry use it to verify schedules, confirm pay, and flag overtime before it becomes a payroll dispute. The core formula is: End Time equals Start Time plus Shift Length plus Unpaid Break Duration. Getting this wrong costs real money on both sides — workers who miscalculate their hours leave paid overtime on the table, and employers who mistrack shift lengths face FLSA liability for unpaid wages, back pay, and penalties.

What You Need Before You Start

Have the following ready before using the 8-hour shift calculator:

- Your shift start time in hours and minutes — use 12-hour (AM/PM) or 24-hour format depending on your preference. The calculator handles both.

- Your unpaid break duration in minutes — most 8-hour shifts include one 30-minute unpaid meal break, making the total clock-on-to-clock-off time 8 hours 30 minutes even though paid hours are 8.

- Your hourly pay rate in dollars if you want a gross pay calculation — enter your base rate before taxes or deductions.

- Your state if you want state-specific break requirements — federal law (FLSA) sets no mandatory break rules for adults, but 21 states have their own meal and rest break laws that override or supplement federal rules.

- Your total hours worked so far this week — entering your running weekly total lets the calculator flag overtime before you work it, not after.

- Whether your shift crosses midnight — overnight shifts (e.g., 10 PM to 6 AM) need to be handled correctly so the calculator doesn't subtract hours rather than adding them across the day boundary.

How to Use This 8-Hour Shift Calculator Step by Step

Enter your information in order for an exact end time and pay calculation.

1. Enter your shift start time — type 9:00 AM for a standard morning shift, 3:00 PM for an afternoon shift, or 10:00 PM for an overnight shift starting before midnight.

2. Enter your total shift length — for a standard 8-hour shift enter 8 hours 0 minutes. For a 10-hour or 12-hour shift, adjust accordingly.

3. Enter your unpaid break time in minutes — enter 30 for a standard half-hour meal break, 60 for a one-hour lunch, or 0 if all your break time is paid or you are taking no breaks.

4. Enter your hourly wage if you want gross pay calculated — the calculator multiplies your paid hours by your rate.

5. Enter your hours worked earlier this week to trigger overtime alerts — the calculator adds today's paid hours to your running total and flags any hours above 40.

6. Select your state for state-specific break guidance — especially important in California, Washington, New York, and other states with mandatory paid rest break rules.

7. Click Calculate. Your result shows exact clock-out time, total time on clock, paid hours, gross pay for this shift, weekly hours to date, and any overtime owed at 1.5 times your regular rate.

The 8-Hour Shift Calculator Formula Explained Simply

The calculation has two parts. The first part finds your clock-out time by adding shift length and unpaid break time to your start time. The second part calculates your pay by multiplying paid hours by your hourly rate, then adding overtime premium pay for any hours above the applicable threshold. Federal overtime applies after 40 hours in a workweek. California and a handful of other states apply daily overtime after 8 hours in a single day.

Clock-Out Time Formula:

Clock-Out Time = Start Time + Paid Hours + Unpaid Break Minutes

Total Time on Clock:

Clock Time = Shift Length + Unpaid Breaks (e.g., 8 hours paid + 30 min break = 8.5 hours on clock)

Paid Hours (decimal):

Paid Hours = Shift Length in minutes / 60

Gross Pay (straight time):

Gross Pay = Paid Hours x Hourly Rate

Overtime Pay (federal FLSA weekly threshold):

Overtime Hours = MAX(0, Total Weekly Hours - 40)

Overtime Pay = Overtime Hours x (Hourly Rate x 1.5)

Regular Pay = (Total Weekly Hours - Overtime Hours) x Hourly Rate

Total Pay = Regular Pay + Overtime Pay

California daily overtime formula:

Daily OT Hours = MAX(0, Daily Hours - 8) for hours between 8 and 12

Double Time Hours = MAX(0, Daily Hours - 12)

Daily OT Pay = Daily OT Hours x (Rate x 1.5) + Double Time Hours x (Rate x 2.0)

- Start Time: the moment the employee clocks in or is scheduled to begin work. Format: HH:MM in 12- or 24-hour notation.

- Shift Length: the total paid working hours. Standard 8-hour shifts run 8 hours 0 minutes. Realistic range: 4 hours (part-time) to 12 hours (extended or healthcare shifts).

- Unpaid Break: meal period of 30 minutes or longer that is not compensated. Short breaks of 20 minutes or under must be paid under federal FLSA rules and should not be deducted.

- Hourly Rate: the employee's base pay per hour before taxes. Federal minimum wage as of 2026: $7.25 per hour, though most states have higher rates.

- Overtime Threshold: 40 hours per workweek under FLSA Section 7(a). California adds a daily threshold of 8 hours per day. Alaska, Nevada, and Colorado also have daily overtime provisions.

This formula is derived from FLSA Section 7(a) as codified in 29 U.S.C. Section 207, administered by the US Department of Labor Wage and Hour Division. Paid versus unpaid break rules come from 29 CFR 785.18 (rest periods, which are compensable) and 29 CFR 785.19 (meal periods, which are not compensable when 30 minutes or longer and the employee is completely relieved of duties).

8-Hour Shift Calculator Worked Examples

Example1:Standard Day Shift — 9 AM Start, 30-Minute Lunch, Hourly Worker

A retail associate starts her shift at 9:00 AM and works a standard 8-hour day with a 30-minute unpaid lunch break. Her hourly rate is $15.50. She worked 24 hours earlier this week.

1. Start time: 9:00 AM

2. Paid shift length: 8 hours

3. Unpaid break: 30 minutes

4. Clock-out time: 9:00 AM + 8 hours + 30 minutes = 5:30 PM

5. Paid hours today: 8.0 hours

6. Gross pay today: 8.0 x $15.50 = $124.00

7. Weekly hours to date: 24 + 8 = 32 hours

8. Overtime this week: 32 hours is below the 40-hour federal threshold — no overtime yet

9. Hours until overtime kicks in: 40 - 32 = 8 hours remaining before overtime

She clocks out at 5:30 PM, earns $124.00 for today, and has 8 hours left before hitting weekly overtime. If she works another 8-hour shift tomorrow, her week totals 40 hours — exactly at the threshold. Any additional time in this workweek after that triggers 1.5x overtime pay from the very first minute over 40.

Example2:Overnight Shift — 10 PM to 6 AM, Healthcare Worker

A nursing assistant starts an overnight shift at 10:00 PM and works 8 hours through until 6:00 AM the following morning. She earns $18.75 per hour and has worked 32 hours already this week. She gets two 15-minute paid rest breaks and one 30-minute unpaid meal break.

1. Start time: 10:00 PM

2. Paid shift length: 8 hours

3. Unpaid break: 30 minutes

4. Paid rest breaks: 2 x 15 minutes = 30 minutes (paid — do not deduct)

5. Clock-out time: 10:00 PM + 8 hours + 30 minutes unpaid = 6:30 AM (next day)

6. Paid hours: 8.0 (the two 15-minute rest breaks are already included — they are paid time)

7. Gross pay today: 8.0 x $18.75 = $150.00

8. Weekly hours: 32 + 8 = 40 hours — exactly at the federal threshold

9. Overtime: 0 overtime hours this week

Her shift crosses midnight, which trips up many workers who try to calculate it manually. The calculator handles the day boundary automatically — 10 PM plus 8 hours 30 minutes lands at 6:30 AM the following day. Her two 15-minute rest breaks are paid under 29 CFR 785.18 and are not deducted from her paid hours. She finishes the week at exactly 40 hours with no overtime.

Example3:California Daily Overtime — 4-Day Compressed Schedule, 10-Hour Shifts

A warehouse worker in California works four 10-hour shifts Monday through Thursday. His hourly rate is $22.00. He wants to know his total pay for the week including California daily overtime.

1. Daily hours: 10 hours per day x 4 days = 40 hours total for the week

2. Federal overtime check: 40 hours — no federal weekly overtime triggered

3. California daily overtime: any hours over 8 in a single day trigger 1.5x

4. Daily OT hours per shift: 10 - 8 = 2 overtime hours per day

5. Total daily OT hours for the week: 2 x 4 days = 8 overtime hours

6. Regular hours: 40 - 8 = 32 hours

7. Regular pay: 32 x $22.00 = $704.00

8. California OT pay: 8 x ($22.00 x 1.5) = 8 x $33.00 = $264.00

9. Total weekly gross pay: $704.00 + $264.00 = $968.00

Under federal rules alone, he would earn 40 x $22.00 = $880.00 with zero overtime. But California's daily overtime rule adds $88.00 for the exact same 40 hours because those hours are arranged in 10-hour daily blocks rather than 8-hour ones. This is the most important reason to know your state's rules — the same hours can mean meaningfully different pay depending on whether you are in a daily overtime state.

Example4:Split Shift and Multiple Breaks — Restaurant Worker, Variable Schedule

A restaurant cook works a split shift: 10:00 AM to 2:00 PM (4 hours), a 2-hour unpaid break off the clock, then 4:00 PM to 8:00 PM (4 more hours). He earns $16.00 per hour and has worked 28 hours earlier this week.

1. First shift segment: 10:00 AM to 2:00 PM = 4 hours paid

2. Break off the clock: 2 hours unpaid — he is completely relieved of duties, so this is not compensable

3. Second shift segment: 4:00 PM to 8:00 PM = 4 hours paid

4. Total paid hours today: 4 + 4 = 8 hours

5. Total time from first clock-in to final clock-out: 10 hours (10 AM to 8 PM)

6. Gross pay today: 8 x $16.00 = $128.00

7. Weekly hours: 28 + 8 = 36 hours

8. Overtime: 0 — 4 hours below the 40-hour federal threshold

He works 10 hours across the day but only 8 hours are paid because the 2-hour mid-day break is a genuine off-the-clock period. Some states — including California, Oregon, and New York City — require a split-shift premium or penalty pay when a non-exempt employee's scheduled hours are interrupted by an off-duty break longer than 1 hour. That premium is separate from and on top of the standard hourly calculation. He should verify whether his state applies a split-shift premium before assuming his gross pay is simply 8 x $16.00.

8-Hour Shift Calculator Results What the Numbers Mean

The clock-out time result is the exact moment you should finish work for a standard 8-hour paid shift. It accounts for unpaid breaks by adding them on top of the paid hours — which is why a 9 AM start with a 30-minute unpaid lunch produces a 5:30 PM end time, not 5:00 PM. Many workers are surprised to learn their employer is legally correct to clock them out 30 minutes later than they expected because that 30 minutes was not paid work time.

Paid hours in decimal format is the figure that goes directly into your payroll calculation. Eight hours is 8.0. Seven and a half hours (after deducting a 30-minute unpaid break from an 8.5-hour clock span) is 7.5. Thirty minutes is 0.5. Quarter-hours are 0.25. This decimal conversion matters because payroll software multiplies decimal hours by your rate — a mistake here ripples through every paycheck.

Common shift patterns and their clock-out times with a 30-minute unpaid break:

Start Time | Paid Hours | Unpaid Break | Clock-Out Time | Paid Hours Decimal

6:00 AM | 8 hours | 30 min | 2:30 PM | 8.0

7:00 AM | 8 hours | 30 min | 3:30 PM | 8.0

8:00 AM | 8 hours | 30 min | 4:30 PM | 8.0

9:00 AM | 8 hours | 30 min | 5:30 PM | 8.0

12:00 PM | 8 hours | 30 min | 8:30 PM | 8.0

3:00 PM | 8 hours | 30 min | 11:30 PM | 8.0

10:00 PM | 8 hours | 30 min | 6:30 AM (+1) | 8.0

11:00 PM | 8 hours | 30 min | 7:30 AM (+1) | 8.0

The most common misunderstanding is confusing total time on clock with paid hours. An 8-hour paid shift with a 30-minute unpaid break requires 8.5 hours on the clock. Workers who believe their employer is underpaying them because they were on-site for 8.5 hours but only paid for 8 are often looking at a correctly calculated paycheck — the 30-minute unpaid meal period is the explanation.

Weekly hours approaching 40 is the most actionable output for overtime planning. If you are at 36 hours after four days, your fifth shift of 4 hours or more pushes you into overtime territory. Knowing this before you work the shift — not after — lets you coordinate with your employer about rate expectations.

How Your Inputs Change the Result

Unpaid break duration is the input that most directly changes the gap between clock-out time and shift length. Adding a 60-minute unpaid break instead of 30 minutes pushes your clock-out time 30 minutes later without adding any paid hours. For a worker trying to schedule childcare or transportation around a shift end time, this distinction matters practically as much as financially.

Break Duration | 8-Hour Paid Shift | Total Clock Span | Clock-Out (9 AM start)

0 min | 8.0 paid hours | 8 hr 0 min | 5:00 PM

15 min (paid) | 8.0 paid hours | 8 hr 15 min | 5:15 PM (no deduction — paid)

30 min (unpaid) | 8.0 paid hours | 8 hr 30 min | 5:30 PM

45 min (unpaid) | 8.0 paid hours | 8 hr 45 min | 5:45 PM

60 min (unpaid) | 8.0 paid hours | 9 hr 0 min | 6:00 PM

90 min (unpaid) | 8.0 paid hours | 9 hr 30 min | 6:30 PM

Hourly rate changes gross pay proportionally and changes the financial impact of every additional hour worked. The difference between a 15-minute and 30-minute unpaid break is zero dollars in gross pay at any hourly rate — both scenarios give 8.0 paid hours. But the overtime rate multiplier makes your hourly rate critically important once you cross 40 hours. At $15.00 per hour, overtime costs $22.50 per hour. At $25.00 per hour, overtime costs $37.50. An employer managing labor costs cares about the rate; a worker tracking earnings cares just as much.

Weekly hours accumulated before today's shift is the input that determines whether any of today's hours are overtime hours. At 35 hours coming into a shift, the first 5 hours of today are regular time and everything after that is overtime. At 38 hours, only 2 hours of today are regular before overtime begins. The calculator applies the correct rate to each segment automatically — but only if you enter your weekly total correctly.

State selection changes which break rules are displayed and, in California and a handful of other states, changes the overtime formula entirely. In California, daily overtime after 8 hours and double time after 12 hours apply regardless of weekly total. In Texas and Florida, there are no state-level break requirements for adults and no daily overtime thresholds — only the federal 40-hour weekly rule.

8-Hour Shift Calculator Common Mistakes to Avoid

- Deducting short paid rest breaks from your hours worked. Under 29 CFR 785.18, rest breaks of 20 minutes or less must be compensated — they count as paid work time and cannot be subtracted from your hours. Only meal periods of 30 minutes or longer where the employee is completely relieved of all duties qualify as unpaid under 29 CFR 785.19. Deducting a 15-minute break from your paid hours is an FLSA violation if your employer requires it.

- Calculating overnight shifts by simple subtraction. Subtracting 10 PM from 6 AM gives a negative number if done naively. Overnight shifts must be calculated by either converting to 24-hour time (22:00 to 06:00 = 8 hours) or by adding 12 hours to the AM end time before subtracting the PM start time. The calculator handles this automatically — but manual calculations on paper routinely get overnight shifts wrong.

- Averaging overtime across a two-week pay period. FLSA overtime is calculated per workweek — not per pay period. If you work 50 hours in week one and 30 hours in week two, you have 10 overtime hours in week one regardless of the two-week average being 40. Employers who calculate overtime across a biweekly period and net out excess hours from a lighter week are violating the FLSA. Each workweek stands alone.

- Assuming federal rules cover your state. The FLSA sets a floor, not a ceiling. States can and do impose stricter requirements. California requires a 30-minute meal break for any shift over 5 hours, a second meal break for shifts over 10 hours, and paid 10-minute rest breaks for every 4 hours worked. Workers in states with stronger laws are entitled to the higher standard — knowing only the federal rule can mean leaving state-mandated pay and breaks unclaimed.

- Confusing the salary exemption threshold with overtime immunity. As of 2026, the federal salary exemption threshold is $684 per week ($35,568 per year) following the court vacatur of the DOL's 2024 proposed increase. Earning more than $684 per week does not automatically exempt a worker from overtime — the employee must also meet a duties test (executive, administrative, or professional duties). Many workers assume a salary automatically means no overtime. It does not.

- Not tracking daily hours in California and other daily overtime states. In California, daily hours over 8 trigger overtime at 1.5x and hours over 12 trigger double time at 2x, regardless of the weekly total. A California worker who completes four 10-hour days — 40 hours for the week — has already earned 8 hours of overtime pay at 1.5x even though the week total equals the standard threshold. Without daily tracking, this overtime goes unclaimed.

- Using clock time instead of paid time for payroll entry. If a worker is on site for 9 hours including a 1-hour unpaid lunch, the payroll entry should be 8 hours — not 9. Entering clock span rather than paid hours overstates labor costs and can result in overpayments that create payroll reconciliation problems. Always deduct qualifying unpaid meal periods before entering hours into a payroll system.

- Rounding shift times incorrectly. Many employers use 15-minute or 6-minute rounding increments for timekeeping. DOL guidance allows rounding only if it averages out fairly over time — rounding that consistently favors the employer is an FLSA violation. Workers who consistently clock in at 8:53 AM and have their time rounded to 9:00 AM while clocking out at 5:04 PM and having time rounded down to 5:00 PM are losing real pay. If rounding consistently disadvantages you, document your actual hours.

Key Terms Explained

FLSA (Fair Labor Standards Act)

The federal law governing minimum wage, overtime pay, recordkeeping, and youth employment standards for most private and government workers in the United States. It sets overtime at 1.5 times the regular rate for hours worked over 40 in a workweek, administered by the DOL Wage and Hour Division.

Workweek

A fixed, regularly recurring 168-hour period — any 7 consecutive 24-hour days established by the employer. Overtime under the FLSA is calculated per workweek, not per pay period. The most common workweek runs Sunday through Saturday, but employers may designate any 7-day span.

Regular Rate of Pay

The actual hourly rate used to calculate overtime — not always the same as the base wage. If an employee receives bonuses, shift differentials, commissions, or other compensation in a workweek, those amounts are typically added to total compensation and divided by hours worked to find the regular rate before multiplying by 1.5 for overtime.

Compensable Time

Any time an employee is required to be on duty, on the employer's premises, or at a prescribed workplace that must be paid. Short rest breaks (20 minutes or less) are compensable. Pre-shift or post-shift activities that are integral and indispensable to the job may also be compensable under the Portal-to-Portal Act.

Meal Period

An unpaid break of 30 minutes or longer during which the employee is completely relieved of all work duties. Under 29 CFR 785.19, a genuine meal period is not compensable. If the employee is required to remain at their workstation or respond to work tasks during the break, the break is compensable regardless of its length.

Daily Overtime

A state-level overtime rule that triggers premium pay based on hours worked in a single day rather than — or in addition to — the federal weekly threshold. California requires 1.5x after 8 daily hours and 2x after 12 daily hours. Alaska, Nevada, and Colorado also have daily overtime provisions.

Decimal Hours

The expression of work time as a decimal fraction of an hour rather than hours and minutes. Thirty minutes equals 0.5 hours. Fifteen minutes equals 0.25 hours. Used by payroll systems to multiply hours by hourly rate without converting minutes to fractions manually.

Split Shift

A work schedule in which an employee's daily hours are divided into two or more distinct segments separated by a non-compensable break longer than a standard meal period. Some states require a split-shift premium — extra pay above regular wages — when the combined gap between segments exceeds a specified threshold.

How This Calculator Works Methodology

This 8-hour shift calculator applies the following formula: Clock-Out Time equals Start Time plus Shift Length in hours plus Unpaid Break Duration in minutes. Overnight shifts are handled by converting all times to minutes elapsed since midnight, performing the addition, and converting back — with a next-day flag applied when the result exceeds 1440 minutes (24 hours).

Paid hours are calculated as Shift Length in minutes divided by 60, expressed to two decimal places. Gross pay equals Paid Hours multiplied by Hourly Rate. Federal overtime is calculated per workweek under FLSA Section 7(a) (29 U.S.C. Section 207): overtime applies to hours exceeding 40 at 1.5 times the regular rate of pay.

California daily overtime follows California Labor Code Section 510: 1.5x for hours 8 through 12 in a single day, and 2.0x for hours beyond 12. Alaska daily overtime applies after 8 hours per day under Alaska Statute 23.10.060. Nevada daily overtime applies after 8 hours per day for employees earning less than 1.5 times the state minimum wage under NRS 608.018.

Paid versus unpaid break classification follows 29 CFR 785.18 (rest periods compensable) and 29 CFR 785.19 (meal periods not compensable when 30 minutes or longer and employee is completely relieved). State-specific break requirements displayed in the calculator are sourced from the DOL State Meal Break Laws table, updated April 2026. The federal minimum wage used is $7.25 per hour (unchanged since 2009). All time calculations use 12-hour clock display with AM/PM notation in output.

Frequently Asked Questions About 8-Hour Shift Calculator

1. What time does an 8-hour shift end if I start at 9 AM?

If you work a pure 8-hour paid shift with no unpaid breaks, you clock out at 5:00 PM. If you take a standard 30-minute unpaid meal break, your clock-out time is 5:30 PM — because the 8 paid hours plus 30 unpaid minutes require 8 hours 30 minutes on the clock. Most full-time jobs include at least one 30-minute unpaid meal break, making the actual door-to-door time 8.5 hours for an 8-hour paid day.

2. How accurate is an 8-hour shift calculator?

The clock-out time calculation is mathematically exact given your inputs. If you enter the 9:00 AM start, 8 hours, and 30 minutes unpaid, the calculator will always return 5:30 PM — there is no approximation in that result. Gross pay accuracy depends on your actual hours and rate, which you enter. Overtime calculations are accurate under either the federal FLSA formula or the state-specific formulas used for California and other daily overtime states. The calculator is as accurate as the inputs you provide.

3. What is the formula for an 8-hour shift end time?

End Time equals Start Time plus Paid Hours plus Unpaid Break Minutes. Convert everything to minutes first for clean arithmetic: 9:00 AM is 540 minutes from midnight (9 x 60). Add 8 hours (480 minutes) plus 30 minutes break = 540 + 510 = 1050 minutes from midnight = 17 hours 30 minutes from midnight = 5:30 PM. For overnight shifts, add 1440 minutes (one full day) if the result exceeds midnight.

4. Are breaks paid or unpaid in an 8-hour shift?

Under federal FLSA rules (29 CFR 785.18 and 785.19): short rest breaks of 20 minutes or less must be paid. Meal breaks of 30 minutes or longer are unpaid if the employee is completely relieved of duties. Most 8-hour shifts include one 30-minute unpaid meal break and may include one or two 10 to 15-minute paid rest breaks. Your total paid hours remain 8.0 regardless of how many paid rest breaks you take — they are already included in your paid time.

5. When does an 8-hour shift calculator not apply?

This calculator gives accurate results for standard hourly and non-exempt salaried employees under FLSA rules. It does not apply to FLSA-exempt employees (salaried professionals earning above $684 per week who meet duties tests), independent contractors, agricultural workers covered by separate FLSA exemptions, or workers in industries with special overtime rules such as trucking (governed by DOT hours-of-service rules) or railroad (governed by the Hours of Service Act). If you fall into a specialized category, consult your HR department or a labor attorney.

6. How do I calculate my end time for an overnight shift?

Enter your start time normally — for example, 10:00 PM. Add your 8 paid hours (8 hours) and your unpaid break (30 minutes). The result is 6:30 AM the following morning. In 24-hour math: 22:00 + 8:30 = 30:30. Subtract 24:00 to get 6:30, which is 6:30 AM. The calculator handles this conversion automatically. Always note the +1 day marker so you don't confuse 6:30 AM the same day with 6:30 AM the next day when scheduling or reporting hours.

7. What is a typical weekly hours total for an 8-hour shift worker?

A standard full-time schedule of five 8-hour shifts per week totals exactly 40 paid hours — the FLSA overtime threshold. With one 30-minute unpaid break per day, total on-site time is 42.5 hours per week (8.5 hours x 5 days) even though only 40 hours are compensated. Workers on 4-day compressed schedules at 10 hours per day also hit 40 hours weekly but may trigger daily overtime in California and other daily-overtime states even though the weekly total matches the standard.

8. Should I consult a labor attorney or HR professional about my shift pay?

If you believe your employer is not paying overtime correctly, is deducting breaks improperly, or is misclassifying you as exempt from overtime, yes. The Department of Labor Wage and Hour Division handles FLSA complaints and can investigate unpaid wage claims without charge to the employee. For complex situations — state-specific rules, multiple job codes, commission-based pay mixed with hourly work, or union contracts — a labor attorney or certified HR professional can clarify your rights and calculate what you may be owed.

Related Calculators Worth Bookmarking

- Overtime Pay Calculator — calculates weekly overtime pay under federal FLSA rules and state-specific daily overtime rules based on your hourly rate and total hours worked, the natural companion to shift time calculation.

- Weekly Timecard Calculator — enters start and end times for each day of the week with individual break deductions, producing a complete weekly hours total and gross pay summary across multiple shifts.

- Break Time Calculator — shows required meal and rest breaks by shift length and state, helping employers build legally compliant break schedules before publishing a weekly roster.

- Paycheck Calculator — estimates take-home pay after federal and state tax withholding, Social Security, Medicare, and voluntary deductions from the gross pay figure your shift calculator produces.

- Time Clock Rounding Calculator — calculates how 5-minute, 6-minute, or 15-minute employer rounding rules change your paid hours versus actual clock time, showing whether rounding is averaging out fairly.

- Schedule Builder — builds a weekly shift schedule for multiple employees, assigning start times, shift lengths, and break windows while flagging overtime exposure before the schedule goes live.

- Night Shift Differential Calculator — calculates shift differential premium pay for evening and overnight shifts where employers pay a higher rate for hours worked outside standard daytime windows.

- Part-Time Hours Calculator — calculates paid hours, weekly totals, and prorated benefits eligibility for workers on schedules under 40 hours, connecting to the same overtime threshold logic as the 8-hour shift calculator.

References and Further Reading

1. US Department of Labor Wage and Hour Division. Fact Sheet 23: Overtime Pay Requirements of the FLSA. DOL WHD, updated 2026. dol.gov/whd.

2. US Department of Labor. 29 CFR Part 785 — Hours Worked Under the Fair Labor Standards Act. Code of Federal Regulations, current edition.

3. US Department of Labor. 29 U.S.C. Section 207 — Maximum Hours (Fair Labor Standards Act Section 7). US Code, current edition.

4. California Department of Industrial Relations. Wage Orders — Hours and Conditions of Work. California Labor Code Section 510. dir.ca.gov, 2026.

5. US Department of Labor Wage and Hour Division. State Meal Break Laws. DOL WHD, updated April 2026. dol.gov/agencies/whd/state/meal-breaks.

6. Office of Personnel Management. How to Compute FLSA Overtime Pay. OPM, 2026. opm.gov.

Important Disclaimer

This 8-hour shift calculator is provided for informational and educational purposes only. Clock-out time, paid hours, and gross pay results are mathematical estimates based on your inputs and standard FLSA formulas. This tool does not constitute legal, payroll, tax, or employment law advice. Overtime rules, break requirements, and minimum wage rates vary by state, industry, and employment classification. Always verify your specific situation against current federal and state labor laws. If you believe your employer has violated your wage and hour rights, contact the US Department of Labor Wage and Hour Division at dol.gov/agencies/whd or consult a licensed employment attorney before taking action.