The Minute Nobody Rounds
Rounding conventions move labour cost by more than most people expect. Where rounding happens, which direction it runs, and what to write down.
Rounding moves labour cost by more than anybody expects, because it happens at four separate points and almost always in the same direction. A fifteen-minute grain rounded up, on six entries a day, over a year, is a number nobody has calculated and everybody is paying.
The practical lesson in “The Minute Nobody Rounds” is that a convenient number should begin a review rather than end one. A team assessing review the relevant platform page for 7 minute rule payroll can add timely time and project context, with transparent settings, proportionate access and a documented correction process around every material use.
The fix is not to abolish rounding. It is to make the convention explicit and symmetric.
For a separate reference relevant to “The Minute Nobody Rounds”, consult AICPA and CIMA professional resources. Compare the general material with the organisation’s actual contracts, accounting policy and jurisdiction.
The four places it happens
At entry, when somebody records a task. At approval, when a supervisor tidies a week. At transfer, when hours move between systems with different grains. And at invoice, when a job's total is presented to a customer.
- At entry, when a task is recorded.
- At approval, when a supervisor tidies a week.
- At transfer, between systems with different grains.
- At invoice, when a total is presented to a customer.
Four roundings, compounding, each defensible on its own.
The direction
Upward, overwhelmingly, at entry — because a task that took fifty minutes is recorded as an hour and one that took seventy is also recorded as an hour.
The asymmetry is not dishonesty; it is that people round to the unit that contains the work, and work expands to fill the unit it is recorded in.
How much it is worth
With a fifteen-minute grain and six entries a day, an average upward bias of seven minutes per entry is forty-two minutes a day — about nine per cent of a working day.
That is an illustrative arithmetic, not a measurement of anybody. The point is the order of magnitude, which is not small.
Measuring your own
Compare total recorded hours to total paid hours for a population with no other explanation for a gap. Where recorded exceeds paid, the difference is largely rounding.
It is one of the few costing figures that can be measured without anybody changing behaviour.
Choosing a grain
Fifteen minutes for most professional work. Six minutes where the work genuinely arrives in short units and the customer expects that precision. Half-days where the work is organised in half-days.
A grain finer than the work produces invented precision; one coarser produces systematic overstatement.
Rounding to the nearest, not up
The convention that fixes most of it: round to the nearest unit rather than up to the next. It is a one-line change in a system configuration and it removes the structural bias.
Where the customer contract requires rounding up, the internal costing should still round to nearest, and the difference should be visible.
The daily total as the check
Where entries are rounded individually, the day should still sum to the day. A day of seven hours recorded as eight is visible immediately if anybody looks at the daily total.
Most systems do not enforce this, and enforcing it removes a large part of the drift.
The minimum charge
A separate convention: a job touched for ten minutes is billed at thirty. Legitimate where setup cost is real, and it should be stated as a minimum charge rather than disguised as time.
Recorded as time it corrupts every estimate built from the history.
Travel and the unit
Travel rounded to the job rather than measured is a large and invisible rounding in field work. Two site visits in a day with travel rounded into each can add an hour that nobody spent.
Recording travel separately, at whatever grain, is what makes it visible.
What to write down
The grain, the direction, who may approve a change, and whether the internal convention differs from the customer-facing one. Four lines in the costing policy.
Most organisations have none of these written and two different conventions in operation.
Rounding in the customer's favour
Some organisations round down on principle when billing, and record the full time internally. That is a commercial decision and a sound one, provided the two figures are both kept.
Where only the billed figure survives, the operation has quietly lost the record of what the work actually took, and every estimate built from that history is light by the rounding.
The grain that does not match the work
A fifteen-minute grain in work that arrives in three-minute units produces either heavy rounding or a decision not to record at all.
In those operations the better answer is usually to count events rather than time — calls handled, items processed — and to derive hours from a measured average. It is more accurate than asking people to time something shorter than the act of recording it.
Reviewing it
When the grain changes, when a new system arrives, or annually. A system migration is the commonest place a convention changes silently, and the resulting step in the series looks like a change in behaviour.
That step, unexplained, has been known to trigger an investigation into a team that had not changed anything at all.