
Decimal hours: how to convert timesheets without changing the bill
An hour and thirty minutes is 1.5 hours. The expensive mistakes happen when a timesheet, an export, and an invoice disagree about that.
Rolling out time tracking, switching tools, and the first ninety days.

An hour and thirty minutes is 1.5 hours. The expensive mistakes happen when a timesheet, an export, and an invoice disagree about that.
The migration is not the hard part. Keeping your old reports reconcilable and not double-billing during the changeover is, and both are decided before you start.
One page, eight decisions. Most agencies have none of this written down, which is why their billable percentage measures interpretation rather than work.

Nobody is lying. Human recall of a working day decays within hours, and every agency's data quietly reflects that. What to change so the numbers describe the week that happened.

Most time tracking advice assumes the problem is discipline. It usually is not — it is that the system asks for more precision than the work can supply.
The first ninety days decide whether you get useful data or a compliance exercise. A practical sequence, and the three mistakes that poison it on day one.
Utilization, effective hourly rate and project margin, straight out of tracked time.
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