Time Card Calculator: Weekly Hours, Overtime and Pay
This time card calculator adds up a working week from clock in and clock out times, deducts unpaid breaks day by day, splits the total into regular and overtime hours at whatever threshold applies to you, and multiplies through by your hourly rate to give the week pay. Shifts that run past midnight are handled without a date, days you did not work are simply left blank, and every figure is shown both as hours and minutes and as decimal hours, because payroll wants one and people read the other.
Table of Contents
How to Fill In the Card
One row per day. Enter the time you started, the time you finished and how many minutes of unpaid break you took. Leave a day blank if you did not work it and it will be ignored rather than counted as a zero.
Set the three pay controls underneath. Your hourly rate, the number of hours after which overtime starts, and the overtime multiplier. The defaults of forty hours and time and a half suit many places but by no means all.
Read both formats. Each day shows hours and minutes alongside the decimal, and so does the weekly total, so you can check a payroll figure against your own without doing the conversion in your head.
Copy Timesheet produces a plain text summary of the whole week, day by day with totals, which is what you want when querying a payslip or sending hours to a client.
Daily Against Weekly Overtime
This calculator splits overtime on the weekly total, which is the more common arrangement and the one that United States federal law uses at forty hours.
Some jurisdictions pay overtime daily. California is the best known example, with a premium after eight hours in a day and a higher one after twelve, regardless of the weekly total. Under that system four ten hour days produce eight overtime hours even though the week totals only forty.
Some places use both, and take whichever is greater. Where that applies, work out each separately rather than assuming the weekly figure covers it.
Averaging agreements change the picture again. Where hours are averaged over several weeks, a long week may attract no premium provided the average holds, which is common in shift work and in parts of Europe.
Overtime Multipliers
Time and a half means 1.5, and double time means 2. Both are entered directly in the overtime rate field, so an arrangement paying 1.25 or 1.75 works just as well.
There is no universal legal minimum. The United States requires one and a half after forty hours for covered employees, while the United Kingdom has no statutory overtime premium at all, leaving it to the contract. Many European countries set rates by collective agreement.
Premiums often stack for unsocial hours. Nights, weekends and public holidays frequently carry their own rate on top of or instead of overtime. Those need a separate line rather than a single multiplier.
Salaried does not always mean exempt. Being paid a salary does not by itself remove an entitlement to overtime in many jurisdictions; the duties and the threshold matter more than the payment method.
Which Breaks Come Off
Only unpaid breaks are deducted. Enter zero for a day where any break was paid, otherwise you are giving away time.
The dividing line is usually length. In many jurisdictions rest breaks under twenty minutes are paid while a meal break is not, but the thresholds vary by country, sector and collective agreement.
Interrupted breaks generally count as work. If you were called back, that time is normally payable, and it is worth recording on the day rather than averaging it away.
On call time is a separate question. Whether waiting time is paid depends on how constrained you are, and it is a frequent source of dispute. A time card is the wrong place to resolve it.
Night Shifts and the Week Boundary
A clock out earlier than the clock in is read as passing midnight. Ten in the evening to six in the morning gives eight hours, and the row says so rather than silently assuming.
Decide which day a night shift belongs to and stay consistent. Most employers attribute the whole shift to the day it started. Splitting it across two days changes daily overtime calculations and can change the week it falls into.
The clock change weeks need care. Twice a year one night is an hour shorter or longer, and a shift spanning that night is genuinely not the length the clock suggests. Check those weeks against the actual dates.
Why Decimal Hours Matter
Eight hours thirty is 8.5, not 8.30. Payroll multiplies decimal hours by the rate, and writing the clock reading instead understates every entry by a fifth of the minutes.
Both forms are shown for every row precisely so the conversion never has to be done by hand, which is where the mistake creeps in.
Small differences compound. A twelve minute error each day is an hour a week and more than fifty hours a year, which is why checking a payslip against your own record is worth the few minutes it takes.
This Is Gross Pay, Not Take Home
The total here is before any deduction. Income tax, social security or national insurance, pension contributions and anything else come off afterwards, and the net figure will be meaningfully lower.
Deductions are not a flat percentage. Progressive tax bands, thresholds and allowances mean the proportion changes with total earnings, so a rule of thumb applied to one week can be well out.
Use this to check hours, not to predict a payslip. Its value is confirming that the hours and the rate are right, which is the part most often wrong.
Keeping Your Own Records
Record hours as you work them. Reconstructing a week from memory at the end is unreliable, and in a dispute contemporaneous notes carry far more weight than a later summary.
Employers are usually required to keep records, often for several years, but your own copy is what protects you when a system loses data or a query arises after you leave.
Note the exceptions on the day. A missed break, a call back, an early start for a delivery. These are exactly the entries that get forgotten and exactly the ones worth money.
Common Mistakes to Avoid
Deducting a paid break. The most common way people under record their own hours.
Using weekly overtime where daily rules apply. In places with a daily threshold, four long days can generate overtime that a weekly calculation misses entirely.
Writing 8.30 for eight hours thirty. It reads as eight hours eighteen minutes and costs twelve minutes an entry.
Treating the total as take home pay. It is gross. Deductions have not been applied.
Frequently Asked Questions
On pay entitlements: Overtime thresholds, premium rates, break rules and whether you are exempt are set by law and by your contract, and they differ by country, state and sector. The figure here is gross pay for the hours entered, not advice on what you are owed.