How to Use the Work Hours Calculator
Log shifts, deduct lunch breaks, and compute gross earnings in four steps.
Set Wage & Overtime
Input your regular base hourly pay rate and weekly overtime threshold (standard 40 hours).
Log Daily Shift Times
Enter start and end times for each day worked, or click "Fill 9–5" for a standard schedule.
Deduct Lunch Breaks
Enter unpaid meal break minutes (e.g. 30 or 60 minutes) to subtract non-compensable time.
Review Payroll Decimals
Inspect exact decimal hours, regular vs overtime splits, and total gross pay.
Timesheet Engine Capabilities
FLSA labor standard and payroll decimal conversion algorithms.
🧮 Automatic Minute-to-Decimal Conversion
Instantly translates irregular minutes into two-decimal payroll hours ready for Gusto, ADP, or QuickBooks.
🍽️ Meal & Rest Break Deduction
Subtracts unpaid lunch periods automatically from daily gross shift spans to prevent payroll overpayment.
⏱️ FLSA Overtime Allocation
Segregates regular 40-hour threshold time from 1.5x time-and-a-half or 2.0x double-time premium hours.
🔒 100% In-Browser Privacy
Zero employee timesheet data transmitted or saved. Track hours with total privacy and security.
💵 Gross Pay Forecast
Multiplies total regular and overtime hours by base wage rates to display pre-tax paycheck expectations.
📱 Touch & Clipboard Ready
Mobile-friendly time pickers with one-click clipboard copying for text message shift submissions.
The Master Guide to Work Hours: Timesheet Math, FLSA Overtime & Decimal Payroll
Tracking employee hours accurately is fundamental to labor compliance and payroll accounting. Under the Fair Labor Standards Act (FLSA), employers must maintain complete, verifiable records of hours worked for all non-exempt employees. Whether you are an hourly contractor submitting weekly invoices or an HR manager auditing payroll records, understanding the mathematics of time conversion and overtime thresholds prevents costly labor disputes.
1. Converting Minutes to Decimal Hours
Because computer payroll systems operate in decimal format (base 10) while clocks operate in sexagesimal format (base 60), minutes must be converted:
| Minutes Worked | Decimal Equivalent | Minutes Worked | Decimal Equivalent |
|---|---|---|---|
| 15 Minutes | 0.25 Hours | 45 Minutes | 0.75 Hours |
| 30 Minutes | 0.50 Hours | 60 Minutes | 1.00 Hour |
2. The Department of Labor 7-Minute Rounding Rule
To streamline time tracking, federal regulation 29 CFR 785.48(b) permits rounding clock punches to 15-minute intervals:
- Minutes :01 to :07: Round down to the previous quarter hour (:00).
- Minutes :08 to :14: Round up to the next quarter hour (:15).
- Minutes :16 to :22: Round down to (:15).
- Minutes :23 to :29: Round up to (:30).
Crucial legal condition: Rounding cannot be one-sided. If an employer rounds clock-ins up (saving company money), they must also round clock-outs up (benefiting the employee). Neutral application over time is mandatory.
3. Overtime Pay: Federal Rules vs. California Daily Overtime
Under federal FLSA rules, overtime is evaluated exclusively on a weekly basis: hours worked over 40 in a designated 7-day period are paid at 1.5x. However, state laws can impose stricter requirements:
- California Labor Code 510: Mandates 1.5x pay for any hours worked past 8 in a single day, and 2.0x (double time) for any hours worked past 12 in a single day.
- Seventh Consecutive Day: California also mandates 1.5x for the first 8 hours worked on the 7th consecutive workday of a workweek, and 2.0x for hours past 8.
4. Paid Rest Breaks vs. Unpaid Meal Breaks
For a break to be lawfully unpaid, it must satisfy the "relieved of duty" test:
- If a receptionist eats lunch at their desk while answering occasional telephone calls, they are NOT relieved of duty—that time must be paid.
- To qualify as an unpaid 30-minute meal break, the employee must be completely free from all work duties and free to leave the employer's premises.
Frequently Asked Questions
?How do you convert timesheet minutes into decimal hours for payroll?
Payroll software calculates wages using decimal hours rather than hours and minutes. To convert minutes to decimals, divide minutes by 60: Decimal Hours = Hours + (Minutes / 60). For example: 8 hours and 15 minutes = 8 + (15/60) = 8.25 hours; 8 hours and 30 minutes = 8.50 hours; 8 hours and 45 minutes = 8.75 hours.
?What is the 7-minute rule in employee time rounding?
Under Fair Labor Standards Act (FLSA) regulations (29 CFR 785.48(b)), employers may round employee time to the nearest 15-minute increment (1/4 hour). Under the 7-minute rule: minutes 1 through 7 round down to the nearest quarter hour, while minutes 8 through 14 round up. The practice is only legal if applied neutrally to both clock-ins and clock-outs without shortchanging employees.
?How does overtime pay work on a weekly timesheet?
Under federal FLSA rules, non-exempt hourly employees must receive overtime pay at 1.5 times their regular hourly rate for all hours worked in excess of 40 hours in a single 7-day workweek: Overtime Pay = (Regular Rate × 1.5) × Overtime Hours. Certain states (such as California) also mandate daily overtime for hours worked exceeding 8 in a single shift.
?Are meal breaks deducted from paid work hours?
Federal law does not require meal breaks, but when offered, bona fide meal periods lasting 30 minutes or longer where the employee is completely relieved of all duties are unpaid and excluded from timesheet totals. Short rest breaks (typically 5 to 20 minutes) must be counted as paid compensable work hours.
?How do you calculate gross weekly wages from decimal hours?
Gross weekly pay is calculated as: Gross Pay = (Regular Hours × Base Rate) + (Overtime Hours × Base Rate × 1.5). For example, working 44 hours at $20/hr yields: (40 × $20) + (4 × $30) = $800 + $120 = $920.00.