To calculate time for payroll, take each employee’s clock-in and clock-out records, round them under a consistent method, convert the minutes to decimal hours, subtract any qualifying unpaid meal breaks, total the compensable hours for the workweek, and pay 1.5 times the regular rate for every hour above 40. Multiply by the pay rate and you have gross pay. The steps below walk through each piece in order.
What You Need Before You Start
Federal recordkeeping rules require a handful of data points for every non-exempt employee before you can run a calculation.1eCFR. 29 CFR Part 516 – Records to Be Kept by Employers
- Exempt vs. non-exempt status. Only non-exempt employees earn overtime. The Department of Labor enforces a minimum salary of $684 per week ($35,568 per year) for the white-collar exemptions; employees earning below that threshold are generally non-exempt regardless of job duties.2U.S. Department of Labor. Earnings Thresholds for the Executive, Administrative, and Professional Exemption
- Hourly rate. The rate the employee was hired at, or the current agreed rate. The federal floor is $7.25 per hour, and many states set a higher one.3U.S. Department of Labor. State Minimum Wage Laws
- Workweek definition. A workweek is any fixed, recurring block of seven consecutive 24-hour periods. It does not have to match the calendar week, but once you set it, keep it consistent.
- Timecards or time logs. The raw daily start and stop times, including breaks. Every figure downstream depends on these.
Converting Minutes to Decimal Hours
Payroll math runs in decimals, not base-60 time. Divide the minutes past the hour by 60 and use that value in place of the minutes.
- 15 minutes ÷ 60 = 0.25 hours
- 20 minutes ÷ 60 = 0.33 hours
- 30 minutes ÷ 60 = 0.50 hours
- 45 minutes ÷ 60 = 0.75 hours
An employee who works 8 hours and 20 minutes is credited with 8.33 hours. Trying to multiply a dollar rate by a time value in hours and minutes produces small errors that compound across a pay period, which is why the decimal step comes first.
Rounding Clock Times
Federal regulations let employers round clock-in and clock-out times to the nearest 5 minutes, 6 minutes (one-tenth of an hour), or 15 minutes (one-quarter of an hour). The condition: rounding must average out so employees are fully paid for the time they actually worked. It cannot consistently favor the employer.4eCFR. 29 CFR 785.48 – Use of Time Clocks
The Seven-Minute Rule
When rounding to the nearest quarter hour, the Department of Labor applies the seven-minute rule. Time from 1 to 7 minutes past a quarter-hour mark rounds down; time from 8 to 14 minutes past that mark rounds up.5U.S. Department of Labor. Fact Sheet 53 – The Health Care Industry and Hours Worked Clock in at 8:06 and the start time is 8:00; clock in at 8:09 and it becomes 8:15. The same works at the end of the shift: 5:22 rounds to 5:15, but 5:23 rounds to 5:30. Over enough shifts the adjustments should offset. If an audit shows they don’t, the practice violates federal rules.
The De Minimis Exception
Federal rules also recognize that truly trivial fragments of time, a few seconds or a minute or two, can be impractical to track and may be disregarded. The exception is narrow. The Department of Labor has stated that 10 minutes a day is not trivial enough to ignore.6eCFR. 29 CFR 785.47 – Where Records Show Insubstantial or Insignificant Periods of Time
Deciding What Counts as Paid Time
Not every minute between arrival and departure is compensable. Federal rules draw the lines in a few places.
Breaks and Meals
Short rest breaks of roughly 5 to 20 minutes are working time and must be paid. Meal periods of 30 minutes or longer are generally unpaid, but only if the employee is completely relieved of work duties. An employee required to stay at a desk or monitor equipment while eating is still on the clock.7eCFR. 29 CFR Part 785 – Hours Worked – Section 785.19 Subtract only qualifying unpaid meals from the day’s total.
Travel
A normal commute is not compensable. Other travel usually is:8U.S. Department of Labor. Fact Sheet 22 – Hours Worked Under the FLSA
- Travel between job sites during the workday.
- Special one-day out-of-town assignments, for the travel time beyond the normal commute.
- Overnight travel that falls during the employee’s normal working hours, whether on a workday or non-workday.
Training, Meetings, and On-Call
Attendance at training, lectures, or meetings counts as work time unless all four of these are true: it is outside normal hours, attendance is voluntary, the subject is not directly related to the job, and no productive work is done. If any one fails, the time is paid.8U.S. Department of Labor. Fact Sheet 22 – Hours Worked Under the FLSA
On-call time turns on how restricted the employee is. Required to stay on the employer’s premises? Working. Simply reachable by phone and otherwise free? Not working, unless the restrictions are tight enough that personal time cannot really be used.
Calculating Overtime
Once you have total compensable hours for the workweek, check whether they exceed 40. Every hour above 40 is paid at one and one-half times the regular rate.9eCFR. 29 CFR 778.107 – General Standard for Overtime Pay The trigger is the workweek, not the day. An employee who works 12 hours Monday and 28 across the rest of the week hit exactly 40 and earned no overtime.
The formula for a single-rate hourly employee:
- Regular pay: 40 × hourly rate
- Overtime pay: (total hours − 40) × (hourly rate × 1.5)
- Weekly pay: regular + overtime
An employee at $20 per hour who works 46 hours in a week earns 40 × $20 = $800 in regular pay, plus 6 × $30 = $180 in overtime, for $980 total. Show both figures on the pay stub.
Blended Rates and Bonuses
The regular rate is not always the base wage. If an employee works two different hourly rates in the same workweek, say $18 for one role and $22 for another, the regular rate is the weighted average: total straight-time earnings divided by total hours. Overtime is then 1.5 times that blended rate.10U.S. Department of Labor. Fact Sheet 23 – Overtime Pay Requirements of the FLSA
Non-discretionary bonuses, meaning those promised in advance based on productivity, attendance, or similar criteria, must be folded into the regular rate for any workweek that included overtime. Discretionary bonuses, such as a surprise holiday gift, are excluded. If a bonus covers a longer period, spread it across the weeks it was earned and recalculate the overtime owed for each of those weeks.
Putting It Together: A Gross-Pay Example
Pull the pieces together with a full example. An employee earning $25 per hour clocks in at 7:58 a.m. and out at 5:07 p.m. each day, Monday through Friday, with a 30-minute unpaid lunch.
Under seven-minute rounding, 7:58 becomes 8:00 and 5:07 becomes 5:00. That is 9 hours between clocks. Subtract the 0.50-hour lunch and each day yields 8.50 compensable hours. Five days come to 42.50 hours for the week.
- Regular pay: 40 × $25 = $1,000.00
- Overtime pay: 2.50 × $37.50 = $93.75
- Gross pay: $1,093.75
This gross figure is the starting point for tax withholdings. When you are running these calculations across multiple employees or varying schedules, locking the decimal conversion and rounding method into a spreadsheet or payroll system from the start prevents the small errors that add up into compliance problems.
What Underpayment Costs
Missing overtime is expensive. An employer who fails to pay the correct overtime rate is liable for the full unpaid amount plus an equal amount in liquidated damages, effectively doubling the bill.11Office of the Law Revision Counsel. 29 USC 216 – Penalties Repeated or willful violations can add civil penalties of up to $2,515 per violation.12U.S. Department of Labor. Civil Money Penalty Inflation Adjustments Keep the underlying time records too. Payroll records must be retained for at least three years from the last date of entry, and the time cards showing daily start and stop times for at least two.1eCFR. 29 CFR Part 516 – Records to Be Kept by Employers Payroll figures are hard to defend without the time records that produced them, so a three-year hold on both is a common practice.