Time Card Calculator

How to use this tool

1. Set your hourly rate and overtime rules. Enter your hourly rate, overtime threshold (default 40 hours), and overtime multiplier (default 1.5x). These apply to the whole week.
2. Pick a rounding policy. Choose nearest minute, quarter hour, half hour, or full hour. Most US employers round to the quarter hour.
3. Enter each day's times. For every day you worked, type the start time, end time, and lunch break in minutes. Leave blank for days off.
4. Read your weekly summary. Total hours, regular hours, overtime, regular pay, overtime pay, and gross pay update live as you type.
5. Export CSV or print. Click Download CSV for payroll or Print View for a paper time card. The header, ads, and explanatory copy are hidden on print.

About this tool and how it works

This utility runs 100% in your browser. No data leaves your device. The underlying logic is:

daily_minutes  = (end - start) - lunch_minutes
rounded_minutes = round(daily_minutes / step) * step
weekly_hours   = sum(daily_minutes) / 60
regular_hours  = min(weekly_hours, threshold)   # default threshold = 40
overtime_hours = max(0, weekly_hours - threshold)
regular_pay    = regular_hours * rate
overtime_pay   = overtime_hours * rate * multiplier  # default multiplier = 1.5
gross_pay      = regular_pay + overtime_pay

You can verify by opening the browser developer tools and watching the Network tab; no requests fire during normal use beyond the initial page and library load.

Real-world scenarios where this tool helps

What this tool does

• Computes daily hours from start, end, and lunch break minutes for each day of the week.
• Splits weekly total into regular and overtime (default 40-hour threshold, 1.5x multiplier; both adjustable).
• Rounds each day to the nearest minute, quarter hour, half hour, or hour.
• Handles overnight shifts (end before start crosses midnight) correctly.
• Multiplies hours by your hourly rate to produce gross pay (pre-tax).
• Exports a CSV file with all rows plus a summary block.
• Provides a clean print view (header, footer, and ads are hidden when printing).
• Lets you set Monday or Sunday as the start of the week.

What it does NOT do

• Does not calculate tax withholding, FICA, or other deductions. Output is gross pay only.
• Does not handle multi-week pay periods. Run each week separately if you have biweekly or semimonthly payroll.
• Does not save your data. Close the tab and inputs are gone (use the CSV export if you want a copy).
• Does not integrate with payroll software directly. Export CSV and import it manually.
• Does not enforce labor laws specific to your state or country. State-specific overtime rules (California's daily 8-hour rule, for example) are not auto-applied; adjust the threshold and multiplier yourself.

Common mistakes and pitfalls

• Forgetting that lunch breaks are entered in minutes, not hours. 30 means 30 minutes, not 30 hours.
• Entering time in 12-hour format without am or pm. Use 9:00 am or 14:30, not just 9 (the tool assumes 9:00 in 24-hour time, which works but can confuse).
• Setting the threshold to 40 when your state uses daily overtime. California pays overtime above 8 hours per day; set your threshold and multiplier accordingly or compute per day.
• Mixing rounded and unrounded time entries. Pick a rounding policy and stick with it across the week.
• Reading gross pay as take-home. After tax this number drops 20-30% in most US states.

Frequently asked questions