Timesheet Guides
Plain-language guides to the math behind timesheets, rounding, and overtime. No jargon, worked examples throughout.
The converters on this site do the arithmetic; these guides explain what the arithmetic is for. Each one covers a single payroll topic with worked numbers, from how employers round clock times to how overtime is computed from decimal hours.
Time Card Rounding Rules
How the 15-minute and 7-minute rules work, what federal law allows employers to round, and how to check whether rounding is costing you pay.
How to Calculate Overtime in Decimal Hours
The 40-hour weekly rule, time-and-a-half math with worked pay examples, state daily-overtime rules, and four mistakes that cost real money.
How to Fill Out a Biweekly Timesheet
A complete walkthrough: from clock times to decimal hours, week-by-week totals, overtime handling, and auditing the paycheck that follows.
Military Time on Timesheets
Reading the 24-hour clock on punch records, converting to and from 12-hour time, night shifts across midnight, and why 1430 and 14.30 are not the same.