Guide
Time Clock Rounding Rules
Many employers do not pay from the exact minute you clock in. They round punch times to a set increment — usually the nearest 5, 6, or 15 minutes — before calculating pay. US federal rules allow this, but only within limits. This guide explains the well-known "7-minute rule", when rounding is lawful, and how to check whether it is costing you.
Why employers round
Rounding dates back to mechanical punch clocks and is still used to keep payroll tidy. The FLSA regulation (29 CFR 785.48) permits recording time "to the nearest 5 minutes, or to the nearest one-tenth or quarter of an hour", provided the practice does not, over time, fail to compensate employees for all the time they actually work.
The 7-minute rule (15-minute rounding)
With quarter-hour rounding, each punch is moved to the nearest :00, :15, :30, or :45. The midpoint is 7½ minutes:
- Clock in at 8:07 → rounds back to 8:00 (you gain up to 7 minutes).
- Clock in at 8:08 → rounds forward to 8:15 (you lose up to 7 minutes).
| Actual punch | Minutes past the quarter | Rounds to |
|---|---|---|
| 9:00–9:07 | 0–7 | 9:00 |
| 9:08–9:14 | 8–14 | 9:15 |
| 9:15–9:22 | 0–7 | 9:15 |
| 9:23–9:29 | 8–14 | 9:30 |
When rounding is legal — and when it is not
Rounding is acceptable only if it is neutral: over a period of time it should balance out, sometimes favouring the employee and sometimes the employer. It is unlawful when it is systematically one-sided, for example:
- Rounding clock-ins up and clock-outs down (always against the worker).
- Only rounding in the employer's favour ("grace periods" that never add time).
- Editing or auto-deducting time for work that was actually performed, such as a missed break the employee worked through.
Courts have increasingly scrutinised rounding, and some states — California in particular — have effectively rejected it for hourly employees where exact time records exist. Where state law is stricter or does not allow rounding, the state rule wins.
Rounding is not the same as decimal conversion
Turning 8 hours 45 minutes into 8.75 is exact arithmetic, not rounding — see how to convert minutes to decimal hours. Rounding changes the times before any conversion happens.
Work that happens before or after a punch
Rounding cannot be used to avoid paying for real work. If you are required to be at your station, boot up systems, or put on protective gear before clocking in, that time is generally compensable ("donning and doffing" and preliminary/postliminary activity rules). A rounding policy does not override that.
How to check your own total
- Write down your actual in and out times for the week from your own notes.
- Add up the real minutes worked and convert once to decimal hours.
- Compare with the hours on your pay stub.
- A small difference that sometimes favours you is normal. A difference that is always against you, week after week, is a red flag.
Raise a persistent shortfall with payroll in writing. Unpaid-time claims go to the Department of Labor's Wage and Hour Division or your state labour agency, and back pay can usually be recovered for two years.
Add up your real hours
The Time Clock Calculator turns a list of in/out punches into a decimal total with no rounding, so you can compare it against your paid hours. The Time Card Calculator does the same across a full week with breaks and overtime.