Work Hours Calculator USA (Daily, Weekly & Timesheet Hours Calculator)
Work Hours Calculator USA 2026 - Calculate Total Hours Worked Per Week, Pay Period & Year
Calculate Exact Work Hours From Daily Shift Times in Seconds
Enter your start and end times for each day worked. The calculator handles breaks, overnight shifts, and multiple days at once. Get your total hours by day, week, pay period, and year — plus an optional gross pay estimate.
Add up to 7 daily shifts. Leave a row blank to skip that day. Overnight shifts are detected automatically.
Type in a start time and end time for each day you worked. You can fill in anywhere from one day to all seven. If a day is blank, it is skipped automatically.
Enter the number of unpaid break minutes for each shift. Unpaid lunch breaks of 30 minutes or more are typically not counted as hours worked under federal law. Short paid breaks of 20 minutes or less generally are. Enter only unpaid time here.
The calculator sums your daily net hours, flags any overtime over 40 hours, and breaks your total down by day, week, pay period, and year. Add an hourly rate to get a gross pay estimate alongside your hours.
Federal Overtime Rules (FLSA)
Under the Fair Labor Standards Act, non-exempt employees must receive overtime pay at no less than 1.5 times their regular rate for hours worked over 40 in a single workweek. The FLSA does not require daily overtime or double time, but many states and employers do.
Overtime is calculated on a workweek basis, not per pay period. A bi-weekly paycheck covers two workweeks, and each must be evaluated separately. Learn more with our overtime calculator and time and a half calculator.
Standard Annual Hours Reference
| Schedule | Hrs/Week | Hrs/Year |
|---|---|---|
| Full-time (standard) | 40 | 2,080 |
| Full-time (50 weeks) | 40 | 2,000 |
| Part-time (30 hrs) | 30 | 1,560 |
| Part-time (20 hrs) | 20 | 1,040 |
| Reduced schedule | 35 | 1,820 |
Use our hourly to salary calculator to convert your annual hours into an equivalent salary.
Paid vs. Unpaid Breaks (FLSA)
| Break Type | Duration | Paid? |
|---|---|---|
| Short rest break | 5-20 min | Generally yes |
| Meal/lunch period | 30+ min | Generally no |
| On-call (restricted) | Varies | Usually yes |
| Sleep time (24-hr shift) | 8 hrs | Varies by agreement |
Source: US Department of Labor, Wage and Hour Division. State rules may differ. Only enter unpaid breaks in this calculator.
Pay Period Hours Reference
| Pay Frequency | Periods/Yr | Hrs @ 40/wk |
|---|---|---|
| Weekly | 52 | 40.0 |
| Bi-weekly | 26 | 80.0 |
| Semi-monthly | 24 | 86.7 |
| Monthly | 12 | 173.3 |
Semi-monthly and monthly pay periods average hours over the year. Overtime is still evaluated workweek by workweek under federal law.
All examples show gross pay only. Federal income tax, FICA, state tax, and any other deductions are not included. Use our gross pay calculator or paycheck calculator for a full after-tax estimate.
Add your start and end times for each day worked, subtract any unpaid break time, and sum the daily totals. For example, if you work 8:00 AM to 5:00 PM with a 30-minute unpaid lunch, that is 8.5 hours for that day. Multiply your daily average by days worked to get your weekly total. This calculator does all of that math automatically.
Yes. If your end time is earlier than your start time, the calculator automatically assumes the shift crossed midnight and adds 24 hours to the end time before calculating the duration. For example, a shift from 10:00 PM to 6:00 AM is correctly calculated as 8 hours. No manual adjustment is needed.
Under the federal Fair Labor Standards Act (FLSA), non-exempt employees must be paid at least 1.5 times their regular rate for all hours worked over 40 in a single workweek. Some states, like California, apply additional daily overtime rules on top of the federal threshold. This calculator flags when your weekly total exceeds 40 hours. For full overtime pay details, try our overtime calculator.
A standard full-time schedule of 40 hours per week for 52 weeks equals 2,080 hours per year. If you take two weeks of vacation, it drops to 2,000 hours. This calculator uses your actual entered weekly schedule and multiplies by weeks worked per year to compute your annualized total.
Yes. Enter an optional hourly rate and the calculator will multiply your total regular hours by that rate and add any overtime pay at your selected overtime rate. This shows a gross pay estimate. For a full after-tax paycheck breakdown, use our paycheck calculator.
Under the FLSA, short rest breaks of 20 minutes or less are generally counted as compensable work time and must be paid. Bona fide meal periods of 30 minutes or more where the employee is completely relieved of duties are typically unpaid and do not count as hours worked. Enter only your unpaid break minutes in the break field on this calculator.
Under federal law, overtime is calculated on a workweek basis, not per day. A workweek is any fixed and regularly recurring period of 168 consecutive hours (seven consecutive 24-hour periods). Only California and a few other states mandate daily overtime for hours over 8 in a single day. This calculator shows federal weekly overtime only. If you work in California or another daily-OT state, verify your entitlement with your state labor department.
Where the Numbers Come From
This calculator applies rules and thresholds from official US federal sources. No third-party salary databases or estimates are used for the core time and pay logic.
- US Department of Labor, Wage and Hour Division — FLSA overtime rules, break compensability guidelines, and workweek definition. dol.gov/agencies/whd/flsa
- FLSA Hours Worked Advisor — Guidance on what counts as compensable time, including rest breaks and meal periods. webapps.dol.gov (DOL eLaws)
- IRS Publication 15 (Circular E) — Employer's Tax Guide, referenced for pay period and payroll calculation context. irs.gov/publications/p15
- California Labor Commissioner's Office — Daily overtime rule (8-hour threshold) referenced in FAQ content for California workers. dir.ca.gov/dlse
This tool is for informational use only. It does not constitute legal, tax, or payroll advice. Rules vary by state, employer, and employment classification. Consult your employer or a qualified professional for guidance specific to your situation.
No shift times, hourly rates, or results are stored, transmitted, or shared. All calculations run directly in your browser. USAJobsKit does not collect or process any personal or financial information entered into this tool.
This tool was developed and reviewed for accuracy and usability by Eman Ali Mughal. The time calculation logic, overnight shift detection, FLSA overtime flagging, and gross pay estimate are built against federal rules sourced directly from the US Department of Labor.