Guides

Short, practical explainers behind the calculators — how the math works, where the rules come from, and the mistakes that actually cost people money.

• How to Calculate Time Card Hours by Hand

  The manual method step by step — converting to 24-hour time, handling lunches and overnight shifts, and the decimal trap that skews paychecks.

• The 7-Minute Rule Explained

  Where the quarter-hour rounding rule comes from, the full rounding map, and how to check it on your own paystub.

• Federal Overtime Basics (FLSA)

  The 1.5×-over-40 rule, what a workweek actually is, exempt vs non-exempt, and the most common overtime myths.

• Choosing a Timesheet Rounding Policy

  For employers: the three defensible rounding options, why always-down rounding creates risk, and how to document your policy.