TimecardSum is a free collection of time calculators for hourly workers and small teams. It helps turn clock punches into a readable record of hours, unpaid breaks, and estimated gross pay, without creating an account.
A practical check for your records
The project is maintained as an independent web tool under the TimecardSum name. It is not a payroll provider, employer, government agency, or legal service. Its purpose is to make routine time arithmetic easier to check before you compare it with your employer’s records.
Four tools, one approach
- Time card calculator: weekly and biweekly cards, printing and CSV.
- Decimal hours calculator: convert durations, add minutes and print a reference chart.
- Time card calculator with lunch: enter unpaid break minutes or separate work periods.
- Overtime calculator: compare supported overtime calculation modes.
How calculations work
Work durations are calculated in whole minutes. Decimal hours are formatted at the end, and gross-pay estimates round the final amount to cents. Biweekly cards calculate overtime separately for each workweek. The tools do not account for time zones, daylight saving changes, taxes, bonuses, or every rule that can affect a paycheck.
References include the U.S. Department of Labor’s federal overtime guidance and California DLSE overtime guidance. California mode is simplified and does not cover alternative workweeks or industry exceptions.
Your entries stay with you
Timecard entries are saved in your browser, not sent to a payroll server. You control whether to print or download them. Read our privacy policy for storage details, and contact us if you find an error.