Your time card says 50 hours. Payroll says 42. The gap is lunch breaks, rounding, and a workweek boundary you didn’t know existed. Fix all three before you file.
How do I add up my time card with lunch breaks?
Type times the way payroll expects them: 12-hour (“8:00 AM”) or 24-hour (“08:00”). The calculator converts every entry to decimal hours. You do no mental arithmetic.
Each row is one workday. Set the date. Fill in clock-in, lunch start, lunch end, and clock-out.
What four punches go on a daily time card?
A standard shift needs four entries.
- Clock in (shift start)
- Lunch start (unpaid break begins)
- Lunch end (break ends)
- Clock out (shift end)
Skip lunch? Leave the break fields empty. Worked a split shift or multiple breaks? Put the total off-the-clock time into the lunch fields.
Does this time card calculator deduct lunch automatically?
Yes. The tool subtracts the gap between lunch start and lunch end from your shift length. No extra step.
Ate a sandwich while answering emails? That’s a working lunch. Federal law says meal periods are paid unless you’re completely relieved of duty. Enter zero for the break.
How does a time card calculator figure weekly hours?
The calculator sums daily totals into a weekly figure. A standard workweek is a fixed 168-hour block (7 × 24). Your employer picks the start, typically Sunday at midnight or Monday at midnight. That boundary decides which week your hours fall into for overtime.
Switch the pay period: weekly (52 paychecks a year), biweekly (26), or semimonthly (24). The overtime threshold adjusts to match.
When does a time card calculator flag overtime?
At 40 hours in a single workweek. Federal law triggers time-and-a-half beyond that line. The threshold is weekly, not daily. Ten hours on a Tuesday means nothing by itself. Fifty hours across the full week means ten hours of overtime.
The calculator applies the 40-hour cutoff automatically. Hours past it are marked and calculated at 1.5× your regular rate.
Minutes to decimal hours: the conversion a time card calculator uses
Payroll software speaks decimals. The tool handles the conversion. Here’s the reference when you spot-check the numbers.
- 0 minutes = 0.00 hours
- 5 minutes = 0.08 hours
- 10 minutes = 0.17 hours
- 15 minutes = 0.25 hours
- 20 minutes = 0.33 hours
- 25 minutes = 0.42 hours
- 30 minutes = 0.50 hours
- 35 minutes = 0.58 hours
- 40 minutes = 0.67 hours
- 45 minutes = 0.75 hours
- 50 minutes = 0.83 hours
- 55 minutes = 0.92 hours
Exact values: divide by 60. One minute is 1/60, or 0.0167 hours. Seven minutes is 7/60, or 0.1167 hours. Forty-five minutes is exactly 0.7500 hours. That’s why 7:45 AM to 4:30 PM with a 30-minute lunch break lands at 8.25 hours, not 8.75.
Saving and printing your time card
Use Save to keep a copy in your browser. Print or export to PDF. Hold onto every time card for at least two years. That’s the federal recordkeeping requirement for time cards and wage rate tables. It’s your evidence if a wage dispute arises.
Time card mistakes that short your paycheck
AM and PM swapped. A 12:00 PM punch is noon. Midnight is 12:00 AM. Check before you save.
Missed lunch punch. Some employers apply an automatic deduction. If you worked through lunch and didn’t override it, your pay comes up short. Compare the calculator’s total against your stub.
Assuming daily overtime is federal law. It’s not. The FLSA sets a 40-hour weekly threshold. California, Alaska, Nevada, and Colorado impose daily overtime by state law. Confirm your state’s rule with its labor department.
Rounding that always goes one way. Employers can round to the nearest quarter hour using the 7-minute rule, but the practice must be neutral over time. Consistent downward rounding is wage theft.
Hours in the wrong workweek. Hours belong to the workweek in which they’re worked. An employer cannot shift them to a different week to dodge overtime.
A salary doesn’t automatically exempt you from overtime. Exempt status hinges on your duties and your salary level. Under the 2026 DOL rule, the salary threshold is $1,128 per week ($58,656 per year). If you’re misclassified, contact the Department of Labor’s Wage and Hour Division.