Timecard Calculator

Calculate total weekly work hours across multiple days. Enter start and end times for each day, see daily hours, weekly total, and overtime breakdown.

Tracking your hours across a full week is essential for accurate payroll, overtime monitoring, and personal budgeting. This weekly timecard calculator lets you enter start and end times for up to seven days — including breaks — and instantly shows your daily hours, weekly total, and where you stand on overtime.

Enter as few or as many days as you worked. Each row shows the hours for that day. The summary at the bottom tallies your week and flags regular hours, overtime (over 40 hours), and whether you're approaching the thresholds.

Why track your timecard manually?

Even if your employer uses a time clock or automated system, independently tracking your hours protects you. Payroll errors happen. Time clock glitches occur. Manager adjustments get made without employee knowledge. Keeping your own record means you can spot discrepancies and raise them before payday.

Employees who track their own hours catch errors more often and are more confident requesting corrections. It's also useful for understanding your own working patterns — are you consistently going over 8 hours on certain days? Are you approaching 40 hours mid-week and at risk of not getting paid for overtime?

Weekly overtime calculation

How to use the Timecard Calculator

  1. Enter your start time: Type or pick the time you started (or will start) your shift. Both 12-hour (AM/PM) and 24-hour formats are accepted.
  2. Pick your shift length: Select your paid shift length — 4, 6, 8, 10, 12 hours, or any custom value. Half-hour options are available.
  3. Add your unpaid break: Choose any unpaid break that extends your time at work. Common options are 15, 30, 45, or 60 minutes.
  4. Read your clock-out time: The result panel shows when you'll clock out, in both 12-hour and 24-hour formats. Overnight shifts display a +1 day badge.

Frequently Asked Questions

How do I calculate my total weekly work hours?

Add up the hours for each day you worked. For each day, calculate hours worked by subtracting the start time from the end time, then subtract any unpaid breaks. Sum all days for your weekly total.

When does federal overtime kick in?

Federal law (FLSA) requires overtime pay (1.5x) for non-exempt employees who work more than 40 hours in a workweek. Your employer must count hours worked, not hours scheduled.

Does my lunch break count toward my 40 hours?

No — unpaid meal breaks are not counted as hours worked under FLSA. Only time you're required to be at work and performing duties counts toward your 40-hour threshold.

What if I work a partial day — do I still get full-day pay?

For hourly workers, you're generally paid only for hours actually worked. Salaried exempt employees are typically paid their full weekly salary regardless of days or hours, with some exceptions.

Can my employer change my timecard without telling me?

Employers are required to maintain accurate time records and pay employees for all hours worked. Altering timecards without employee knowledge may violate FLSA. If you suspect unauthorized changes, document your hours independently and consult your state's labor board.

Sources & Disclaimer

Overtime thresholds reference the U.S. Fair Labor Standards Act (FLSA, 40 hrs/week at 1.5x) plus state daily overtime rules (e.g., California Labor Code §510: 8h/day OT, 12h/day double-time). State labor laws vary — check your state's labor department. This calculator is informational only and is not legal, tax, or payroll advice.