Common Time Card Mistakes
Missing one side of a shift
A day needs both a clock-in and a clock-out time before it can be counted. Blank rows stay at zero, which keeps weekends, vacation days, or unpaid days out of the total.
Breaks entered the wrong way
Break minutes are subtracted from the shift. A 9:00 AM to 5:00 PM shift with a 30-minute unpaid break counts as 7.5 worked hours. If the break is paid, enter 0.
Forgetting overnight shifts
If clock-out is earlier than clock-in, the shift is treated as ending after midnight. That is common for security, healthcare, hospitality, warehouse, and night-shift schedules.
If a shift includes more than one unpaid break, add the break minutes together before entering them. For example, a 30-minute lunch and a 15-minute unpaid break should be entered as 45 minutes.
Example: Regular Hours and Overtime
If the week totals 43.5 hours and the overtime threshold is 40, the result is 40 regular hours and 3.5 overtime hours. If an hourly rate is entered, overtime is estimated at 1.5 times the base rate.
If the workplace uses a different overtime threshold, change it before calculating. Some employers also use daily overtime, pay-period overtime, or union rules that this weekly estimate does not capture.
For a part-time schedule, the threshold can be changed to match the policy being checked. If overtime does not apply, set the threshold higher than the weekly hours or leave the pay estimate as a rough hours summary.
Overtime can also depend on the workweek definition. A pay period that runs Sunday through Saturday may not match a schedule someone thinks of as Monday through Sunday.
Why Pay May Not Match Payroll
The gross-pay result does not include taxes, deductions, reimbursements, shift differentials, bonuses, tips, paid leave, or employer-specific adjustments.
Rounding policies can also change the final pay. Some systems round to the nearest minute, 5 minutes, 6 minutes, 10 minutes, or 15 minutes. Break rules can differ too: a meal break may be unpaid, paid, automatically deducted, or only deducted after a certain shift length.
Payroll systems may also split overtime by day, week, job code, location, or pay period. This page gives a practical weekly estimate, not a replacement for an employer's timekeeping rules.
When Another Tool Fits Better
For one start and end timestamp, use the time duration calculator. For workdays in a date range, use the business days calculator. For payroll dates, reminders, or deadlines that move forward or backward from a known date, use the date calculator.
If the only question is "how long was this one shift," the time duration page is simpler. If the question is "how many hours did this week add up to," this time card page is the better fit.
If payroll uses multiple jobs or rates in the same week, calculate the hours here first, then apply each employer rate rule separately.