How this time card calculator works
Each active row subtracts the start time from the end time, then subtracts the unpaid break minutes. The weekly total is the sum of the valid net row totals.
Breaks, gross hours and net hours
Gross hours are the scheduled span before breaks. Break minutes are subtracted from each row. Net hours are the row total after breaks.
Decimal hours
Decimal hours convert minutes into fractions of an hour, such as 7 hr 30 min = 7.50 hours.
Overnight shifts
Turn on overnight for a row when the end time is on the next day. Time-only rows use wall-clock math and do not claim exact elapsed real time across daylight saving changes.
What this tool does not include
This calculator totals time only. It does not provide payroll, tax or employment-law advice, decide overtime, approve timesheets, store employee data or connect to payroll systems.
Key terms and assumptionsShort notes about row totals, breaks, overnight rows, CSV export and payroll scope.
- Active rows
- Rows with a start time, end time, break value or overnight setting are active. Empty rows are ignored.
- Break minutes
- Blank break fields mean 0. Breaks must be whole, non-negative minutes and shorter than the shift.
- Overnight rows
- Overnight mode treats an end time before or equal to the start time as the next day.
- Wall-clock math
- Rows use simple wall-clock times and do not account for daylight saving or timezone changes.
- No payroll advice
- The result is a time total only, not payroll, tax or employment-law advice.
Related calculators and tools
Browse the Date & Time tools hub for related Date & Time tools.
- Time Duration Calculator Calculate elapsed time between two times or datetimes, including overnight spans, hours, minutes and decimal hours.
- Work Hours Calculator Estimate total work hours over a date range from selected workdays, hours per day, breaks and manual excluded dates.
- Overtime Calculator Estimate regular pay, overtime pay and gross pay from entered hours, hourly rate and overtime multiplier.
- Business Days Calculator Count business days between two dates while excluding selected weekend days and custom holidays or dates.
- Hourly to Salary Calculator Convert hourly pay to estimated annual salary, monthly pay, weekly pay and fortnightly pay.
- Salary to Hourly Calculator Convert annual salary to an estimated hourly rate, monthly pay, weekly pay and fortnightly pay.
FAQs
How are time card hours calculated?
Each row subtracts start time from end time, then subtracts the unpaid break duration.
Can I enter lunch breaks?
Yes. Enter the break duration in minutes for each row. A blank break field means 0 minutes.
Does this calculate overtime?
No. Use the Overtime Calculator for a basic gross-pay estimate, and do not treat it as legal or payroll advice.
How do overnight shifts work?
Turn on overnight for a row when the end time is on the next day.
What are decimal hours?
Decimal hours convert minutes into fractions of an hour, such as 7 hr 30 min = 7.50 hours.
Can I export the time card?
Yes. The CSV export is generated in your browser from the active rows and totals.
Does daylight saving affect overnight shifts?
This version uses wall-clock times and should not be treated as exact real elapsed time across daylight saving changes.
Does the tool store timesheet data?
No. It runs in the browser, does not require an account and does not need to store employee data.