Guide

Timecard rounding explained

Updated October 23, 2026

Many time clocks and payroll systems round clock-in and clock-out times to the nearest 5, 6 or 15 minutes. Here’s how each rule works, what United States federal rules say about it, and how to see what rounding does to your own paid time.

What timecard rounding is

Your time clock records the minute you punch in, say 08:07. With rounding, payroll uses a nearby step instead, such as 08:00. The time you actually punched still exists; rounding only changes the time used to calculate pay.

Each punch is rounded on its own, so rounding can add or remove a few minutes at the start and at the end of every shift. Some employers round break punches as well, and some don’t round at all.

Common rounding rules

With 6-minute rounding, a punch exactly 3 minutes past a step is halfway between two steps. Systems differ on which way they round it, so ask your payroll team if it matters to you.

Some systems round only one way, always up or always down, or use different rules for clock-in and clock-out. Those rules move time in one direction every shift, so they’re worth knowing about when you check your hours.

The “7‑minute rule”

The 7‑minute rule is the common name for rounding to the nearest quarter hour. A punch at 08:07 rounds down to 08:00, and a punch at 08:08 rounds up to 08:15. At the end of a shift, 16:07 becomes 16:00 and 16:08 becomes 16:15. It isn’t a separate law; it’s a description of how quarter-hour rounding falls on whole minutes.

What US federal rules say

The U.S. Department of Labor’s regulation on time clocks, 29 CFR 785.48, describes the long-standing practice of recording start and stop times to the nearest 5 minutes, or to the nearest tenth or quarter of an hour. For enforcement, it accepts this practice as long as it’s used in a way that doesn’t, over a period of time, result in employees not being paid for all the time they actually worked.

In other words, rounding is expected to even out. Rounding that goes both ways can do that; rounding that consistently favors one side doesn’t. The same regulation notes that employees who voluntarily come in early or stay late don’t have to be paid for that time if they don’t work during it.

Worked example: one week, rounded to the nearest 15 minutes

Each shift below has a 30-minute unpaid break, which isn’t rounded. Paid time is the time between the punches, minus the break.

This week, rounding added time on two days and removed it on three, for 12 minutes less paid time overall. At $18.00 an hour, that’s $3.60. One week doesn’t show whether rounding evens out: the next week could go the other way. That’s why it’s worth comparing totals over several pay periods.

How to check rounding on your own timecard

1. Keep your exact times. Note the minute you actually start and stop, not the rounded time.
2. Find out the rule. Ask payroll which increment they use, whether it’s “nearest” or always up or down, and whether breaks are rounded.
3. Round your own punches with the same rule, and work out paid time both ways for each shift.
4. Add up the difference for each pay period, and keep a running total over several periods.
5. Ask about patterns, such as a difference that goes the same way week after week, with your dates and times in hand.

Rounding also affects overtime: a few minutes per shift can move hours across a 40-hour threshold. See how to check your paycheck against your hours for the full calculation.