Time card calculator

How the math works

Every step works in whole minutes. Nothing is rounded until the end, and then only for display.

1. Each pair of punchesOut minus in, in minutes. An out time earlier than the in time ended the next day; the shift stays on the day it started. With rounding on, each punch is rounded first (half up).Rounding 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.29 CFR 785.48 · Fact Sheet #53: The Health Care Industry and Hours Worked
2. Unpaid breaksThe break minutes come off the day. A break you punch out and back in for is simply the gap between two pairs.Bona fide meal periods (ordinarily 30+ minutes, completely relieved from duty) are not work time. Eating at a desk or machine while on duty is work time. The FLSA itself does not require meal or rest breaks.29 CFR 785.19 · 29 CFR 785.18
3. Daylight saving nights (dated cards)A shift that spans 2:00 AM on the second Sunday of March is 60 minutes shorter than its clock times; one that spans the repeated hour on the first Sunday of November is 60 minutes longer.15 U.S.C. 260a — Advancement of time or changeover dates
4. TotalsDays are added in minutes, then shown as hours:minutes and as decimal hours rounded half up to the hundredth: 486 minutes = 8:06 = 8.10 h; 2,938 minutes = 48:58 = 48.97 h.
5. The workweekEach workweek is counted on its own, from the start day you choose. A shift that crosses the end of the workweek is split at midnight.A workweek is a fixed, regularly recurring 168-hour period (seven consecutive 24-hour periods). It can start on any day and at any hour, and it stays fixed regardless of the schedule. It can be changed only permanently and not to evade overtime. Each workweek stands alone. Hours cannot be averaged across 2 or more weeks, whatever the pay period (biweekly, semimonthly, monthly). For example, 30 + 50 hours means 10 OT hours in week 2.29 CFR 778.105 · 29 CFR 778.104
6. Federal overtimeMinutes over 40 hours in the workweek are overtime at 1.5 times the rate. This is always computed, and it is the floor.Covered, non-exempt employees must get overtime for hours worked over 40 in a workweek, at not less than 1.5 times the regular rate.29 CFR 778.107 · Overtime Pay
7. State overtimeWith a state chosen: day by day, minutes past the state’s daily lines (or on a seventh day in a row, where the state has that rule) are paid at its rates; the remaining straight minutes count toward the weekly line. Every minute is paid at one rate only. If the federal rule pays more for the week, the card uses it and says so.The FLSA does not require daily overtime (over 8 hours in a day). Daily overtime comes only from state law or contract.29 CFR 778.102
8. PayStraight time = regular minutes × rate ÷ 60; overtime = overtime minutes × 1.5 × rate ÷ 60; double time = minutes × 2 × rate ÷ 60. Each line is rounded to the cent once; gross is the sum of the lines. Example: 538 minutes × $36.75 ÷ 60 = $329.53.
9. The FLSA premiumFederal overtime minutes × half the rate ÷ 60 (538 × $12.25 ÷ 60 = $109.84). Only this half counts toward the 2025–2028 federal overtime deduction.FS-2026-01 (Jan. 2026), Questions and answers about the new deduction for qualified overtime compensation (superseded by FS-2026-13)