Add up your work hours from clock-in and clock-out times. Subtracts breaks, totals your week, and splits regular hours from overtime automatically.
Most people know their schedule — '9 to 5' — but not their hours. Nine to five with a half-hour unpaid lunch is 8 hours a day, 40 a week. Nine to five-thirty is 8.5, or 42.5 a week — that's 2.5 overtime hours weekly, 130 a year, worth thousands at time-and-a-half. Small daily differences compound into real money and real legal rights, which is why totaling hours from actual clock times beats guessing from your schedule label.
Accurate hour totals also protect you. Wage theft — unpaid overtime, shaved breaks, off-the-clock work — costs US workers billions annually, and it thrives on fuzzy math. When your own records show 43.5 hours and your paycheck shows 40, you have something concrete to raise with payroll. This calculator gives you that baseline in seconds.
The key input most people get wrong is the break. Only unpaid break time gets subtracted. A 30-minute lunch where you clock out (or are automatically deducted) comes off; two paid 15-minute rest breaks stay in. If your employer auto-deducts 30 minutes but you worked through lunch, those 30 minutes are compensable work time under the Fair Labor Standards Act — a common source of underpayment in retail, food service, and healthcare.
Overnight shifts need care too: clocking in at 10 PM and out at 6 AM is 8 hours, not negative 16. Enter times as they read on the clock and the calculator resolves the span correctly. If your schedule varies day to day, compute each distinct day separately and add them — or use a full time-card tool for pay-period tracking.
Hours are only half the story; the other half is what each hour is worth. Once you have your weekly total, the overtime split tells you how many hours earn the 1.5× premium — multiply those by your overtime rate (from our overtime calculator) to see the weekly dollar value. A worker at $20/hour doing 45-hour weeks earns an extra $150/week in OT premium alone, or $7,800 a year.
Annual hours put career decisions in perspective too. The standard full-time year is 2,080 hours (40 × 52). If your schedule totals 2,400 hours, you're working 15% more than standard — your salary or wage should reflect that. Dividing any annual pay figure by your real annual hours (not 2,080) reveals your true effective hourly rate, which is the honest number for comparing jobs, negotiating raises, or deciding whether the overtime life is worth it.
Simple subtraction and multiplication — the value is in doing it consistently and splitting overtime correctly.
Clock in: 9:00 AM. Clock out: 5:30 PM. Unpaid break: 30 minutes. Days per week: 5.
Hours per day: 8.5 − 0.5 = **8 hours**. Weekly total: **40 hours** — exactly full-time, with zero overtime.
Now try 8:00 AM to 6:00 PM with a 30-minute break, 5 days: that's 9.5 hours/day = 47.5 hours/week, meaning 40 regular hours + **7.5 overtime hours**. At $22/hour, those 7.5 OT hours at time-and-a-half add $247.50 to the week's pay.
Enter your start time, end time, and unpaid break length, plus how many days per week you work that schedule. The calculator subtracts the break, totals your daily hours, and multiplies out to weekly, monthly and annual figures — splitting regular vs. overtime hours automatically.
Yes. Unpaid breaks (like an off-the-clock lunch) are subtracted; paid breaks (like a 15-minute rest break you're paid for) should not be entered, since they're part of your paid hours.
No — enter times in the format your schedule uses and the calculator handles AM/PM correctly. For overnight shifts crossing midnight, the math still works as long as clock-out is after clock-in on the 24-hour clock.
Anything over 40 hours in a single workweek is overtime under federal law (for non-exempt workers), paid at 1.5×. The calculator splits your weekly total into 40 regular hours plus the overtime remainder so you can see both.
Multiply weekly hours by 52. A 40-hour week is 2,080 hours a year; a 37.5-hour week is 1,950. Monthly is weekly × 4.33 (the average weeks per month).
A time card calculator tracks clock-in/out per day across a pay period; this work hours calculator totals a repeating daily schedule into daily, weekly, monthly and annual hours. Use this one for regular schedules, a time card tool for varying shifts.