Guide · Rules
The 7-Minute Rule and Time Clock Rounding
How quarter-hour rounding and the 7-minute rule work under federal law, why rounding has to be neutral, and how per-punch rounding changes a day’s total.
Updated · 5 min read
Time cards & hours · calculator
What rounding to the nearest 5, 6 or 15 minutes does to each punch, to the week’s total, and who ends up with the minutes.
The rule asks whether rounding evens out over time, so add up to 4 weeks — or paste a whole pay period from your time clock.
Minutes (30), h:mm (0:30) or 1/2 hr. The break is not rounded.
Shows what the period would be if each day’s time were always rounded down — the practice the rule warns about.
Try an example
40:3040.50 hours paid
On the clock: 40:23 (40.38 hours). Rounded: 40:30 (40.50 hours).
Who gained, whole periodOver the week (5 days), rounding favoured the worker by 7 minutes.
Over the week (5 days), rounding favoured the worker by 7 minutes.
RuleRounding punch times to the nearest 5 minutes, tenth of an hour (6 min) or quarter hour (15 min) is accepted for enforcement, provided that over time it does not underpay employees for time actually worked.Sources checked How the math works ↓
Rounding added 25 minutes to the worker’s time and took off 18 (worker +7 min in all).
One week is not the test: the rule asks whether rounding averages out over time. Add weeks or paste a whole pay period.
| Day | Clock | Rounded | Worker |
|---|---|---|---|
| Mon | 8:09 | 8:00 | −9 min |
| Tue | 8:08 | 8:00 | −8 min |
| Wed | 8:04 | 8:15 | +11 min |
| Thu | 7:53 | 8:00 | +7 min |
| Fri | 8:09 | 8:15 | +6 min |
| Week | 40:23 | 40:30 | +7 min |
“Worker” is rounded time minus clock time: + means the worker was paid for more time, − for less.
Scale: 1 minute = 7.5 px · each cell is one minute, shaded by where it rounds · the triangle is the punch
An in punch rounded earlier adds time; rounded later, it takes time off. With quarter hours, 1–7 minutes past go back and 8–14 go forward: the 7-minute rule.
Who gained, minute by minute
One box = 1 minute · filled = added, open = taken off
Calculated with Punch Clock Math · rules checked October 22, 2026 · an estimate, not legal or tax advice · punchclockmath.com
Each punch is moved to the nearest mark of the increment; the paid time is then measured between the rounded punches.
Guide · Rules
How quarter-hour rounding and the 7-minute rule work under federal law, why rounding has to be neutral, and how per-punch rounding changes a day’s total.
Updated · 5 min read
Guide · Rules
29 CFR 516.2 lists the pay and hours records employers keep for each non-exempt worker: 3 years for payroll, 2 for time cards. What workers should keep.
Updated · 5 min read
In-depth guide · Hours
How to calculate hours worked from in and out punches: subtract, remove unpaid meal breaks, handle overnight and DST shifts, convert to decimal.
Updated · 11 min read
Every rule above comes from these pages, read on the dates shown.