Time rounding lawsuits prove unpaid overtime by comparing raw clock-punch data to rounded payroll records. Expert analysis totals the lost minutes and converts them into unpaid overtime dollars. Time rounding means the employer moves start and stop times to the nearest 5 minutes, tenth of an hour, or quarter hour. That shortcut is only lawful when workers still receive pay for all time actually worked over time.
Table of Contents
- When is rounding allowed at all?
- How do workers show the minutes added up to overtime?
- Why do some rounding policies survive?
- What records help you check your own pay?
When is rounding allowed at all?
Federal rules permit rounding of start and stop times only when the practice does not, over time, fail to pay for all time worked. The Duane Morris summary of DOL rounding guidance explains that two-part test in detail Duane Morris summary of DOL rounding guidance. Rounding must be neutral on its face and neutral in application.
In practice, gains and losses must average out so employees are fully paid. A policy that looks even can still break the law. Liability turns on real payroll results, not the written rule.
How do workers show the minutes added up to overtime?
Lawyers start with two data sets: the timeclock file and the paid-time file. Experts line up each punch against each paid entry, shift by shift and week by week. In the hospital case analyzed by Baker Sterchi, that comparison showed 6-minute shift-boundary rounding under-compensated two-thirds of employees and did not average out Baker Sterchi analysis of the Houston rounding record.
The Eighth Circuit reversed summary judgment for the hospital in Houston v. Saint Luke's Health System in 2023. That workforce-wide shortfall matters for overtime. A few minutes per shift can push weekly hours past the overtime line or shrink the overtime already earned.
Why do some rounding policies survive?
Rounding is not always unlawful. Small or balanced rounding can stand when the proof shows no systematic loss. The CDF Labor Law blog reports that the Ninth Circuit upheld neutral quarter-hour rounding in Corbin v.
Time Warner CDF Labor Law blog on the Corbin rounding decision. The employee there showed only about one minute of lost time tied to opening a program before clocking in. The lesson is direct. Plaintiffs need pattern proof across workers and paychecks, not one bad day.
What records help you check your own pay?
Save both sides of the comparison. Keep schedules, clock-time photos, badge logs, pay stubs, and overtime totals. Rounding can also hide other unpaid work. HRMorning reporting on McBride v. Chestnut Hill Hospital describes nurses barred from clocking in more than 7 minutes early who allege quarter-hour rounding erased paid changing and pre-shift time HRMorning report on the Chestnut Hill rounding claims.
Useful checks include: When employer records are inadequate, the U.S. Supreme Court's Anderson v. Mt. Clemens Pottery Co. decision allows proof through evidence of work plus a just-and-reasonable estimate. Bring both sets of records to a wage-claim review.
- compare actual punch times to paid start and stop times
- flag early arrivals, late departures, and pre-shift tasks
- track changing, setup, and handoff time separately
- note weeks where lost minutes affect overtime hours