Standout
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Enter in & out.
For each day, type when you clocked in and out. Use the time picker in 12-hour (AM/PM) or 24-hour form — both work. Overnight shifts that end after midnight are detected for you.
Free time calculator · Breaks + overtime · No signup
Time Card Calculator for Work Hours and Overtime
Add up a full week of work hours with breaks, lunch deductions, overtime, overnight shifts, and decimal hours. This time card calculator runs in your browser, so you can total hours worked without uploading payroll data. Save your week or share it with a link.
Used by hourly workers & students from
Stanford·UCLA·Penn State
Total work hours in seconds.
Use this time card calculator to enter clock in and clock out times for each day, subtract unpaid break time, and see weekly total hours. It works for hourly employees, managers, freelancers, and anyone who needs a fast time tracking check.
To calculate time worked, subtract the start and end times for each shift, then deduct breaks that are unpaid. For example, 9:00 AM to 5:00 PM with a 30-minute lunch is 7 hours 30 minutes of paid work time.
The card calculator also handles common mistakes. It detects overnight shifts, converts hours and minutes to decimal hours, and splits regular time from overtime after your chosen threshold.
How to calculate hours from a time card.
Use three steps: enter your times, subtract unpaid breaks, and read the weekly total. Regular hours and overtime split automatically.
02
Subtract breaks.
Put your unpaid break for the day in the Break field, in minutes. A 30-minute lunch comes straight off that day's hours. Paid breaks stay in — don't enter those.
03
Read the total.
See each day, the weekly total in hours-and-minutes and decimal, and the regular vs. overtime split past your threshold. Add an hourly rate for gross pay, then copy, save, or share it.
Breaks, lunches & what counts.
Break time rules are the most common reason two time cards do not match. The key question is whether the break is paid or unpaid.
- Unpaid breaks come off. A bona-fide meal period (typically 30 minutes or more) where you're relieved of duty is unpaid — enter it in the Break field so it's deducted.
- Short paid breaks stay in. Under federal rules, short rest breaks (usually 5–20 minutes) are counted as hours worked and paid — don't subtract them.
- Working through lunch counts. If you're not fully relieved — answering the phone, covering the desk — the time is generally worked time. Leave the break out.
- Round honestly. The tool keeps full precision internally and displays clean hours and minutes; it never silently rounds your time down.
Break rules vary by state and employer. Use your employer's written policy and your state labor agency's guidance when you need an official answer.
Overtime & time and a half.
In the United States, the Fair Labor Standards Act requires overtime pay for many non-exempt employees who work more than 40 hours in a workweek. Overtime is usually time and a half, or 1.5 times the regular hourly rate.
Set the overtime threshold to 40 hours, or change it if your workplace uses a different rule. The time card calculator separates regular hours from overtime hours after it totals the full week. If you enter an hourly rate, the tool estimates gross pay: a 48-hour week at $20 per hour is 40 regular hours at $800 plus 8 overtime hours at $30 per hour, for an estimated $1,040 gross.
- Weekly, not daily. Federal overtime is based on the total worked in a 7-day workweek, so this tool totals the week before splitting overtime.
- Some states differ. A few states (such as California) also have daily overtime rules. Use the threshold and your rate as a planning estimate, not legal advice.
- Salaried & exempt roles. Overtime rules apply to non-exempt employees; exempt salaried roles are generally not eligible.
Hours to decimal conversion.
Payroll systems often need decimal hours instead of hours and minutes. Divide the minutes by 60, then add the hours. Eight hours and 30 minutes is 8.5 because 30 divided by 60 is 0.5.
| Minutes | Decimal | Minutes | Decimal |
|---|---|---|---|
| 5 minutes | 0.08 | 35 minutes | 0.58 |
| 10 minutes | 0.17 | 40 minutes | 0.67 |
| 15 minutes | 0.25 | 45 minutes | 0.75 |
| 20 minutes | 0.33 | 50 minutes | 0.83 |
| 25 minutes | 0.42 | 55 minutes | 0.92 |
| 30 minutes | 0.50 | 60 minutes | 1.00 |
Switch the calculator to Hours → decimal to convert any value both ways — type 8:30 to get 8.5, or type 8.5 to get 8:30.
Worked examples.
Plug these same inputs into the calculator to see the results update live.
1. A standard Monday to Friday week
9:00 AM to 5:00 PM with a 30-minute lunch is 7.5 hours a day. Five days is 37 hours 30 minutes, or 37.5 decimal hours, so there is no overtime.
2. A week with overtime
Six 9-hour days with no break is 54 hours. That is 40 regular hours and 14 overtime hours. At $20 per hour, that is $800 regular pay plus $420 overtime pay, for $1,220 gross.
3. An overnight shift
Clocking in at 10:00 PM and out at 6:00 AM is 8 hours, not a negative number. The calculator sees that the out time is earlier than the in time and counts the shift through midnight.
4. Hours to decimal for payroll
42 hours 15 minutes is 42.25 decimal hours because 15 divided by 60 is 0.25. Enter it in Hours to decimal to confirm, then paste the decimal into your payroll system.
When to use a time card calculator.
Use a time card calculator before payroll, after a schedule change, or any time you need to confirm work hours. It is useful for weekly timesheets, contractor invoices, job costing, shift notes, and personal time tracking.
It also helps catch errors before they become payroll questions. You can compare scheduled hours with actual clock out times, confirm break time deductions, and check whether a week crosses 40 hours.
Time card calculator — FAQ.
How do I calculate hours worked from a time card?
Subtract the clock-in time from the clock-out time for each day, then subtract any unpaid break. Add every day together for the weekly total. This calculator does it automatically and shows the total in hours and minutes and as decimal hours.
How do I subtract a lunch break?
Enter the unpaid break for that day in the Break minutes field. A 30-minute lunch on an 8-hour shift leaves 7 hours 30 minutes of paid time. Paid breaks should not be entered because they still count as time worked.
How does it handle overnight shifts?
If the clock-out time is earlier than the clock-in time, the calculator assumes the shift crossed midnight and rolls it to the next day. For example, 10:00 PM to 6:00 AM is counted as 8 hours.
What is time and a half overtime?
Under the US FLSA, many non-exempt employees earn 1.5 times their regular rate for hours worked beyond 40 in a week. Set the overtime threshold to 40 by default, and the calculator splits regular and overtime hours.
How do I convert hours and minutes to decimal?
Divide the minutes by 60 and add the hours. Eight hours 30 minutes is 8.5 decimal hours because 30 divided by 60 is 0.5. Common values are 15 minutes for 0.25, 30 minutes for 0.5, and 45 minutes for 0.75.
Does this time card calculator store my data?
No. Every calculation runs in your browser and nothing is uploaded or sent to a server. If you choose Save week, the week is stored only in your own browser on your device, and you can share a calculation with a link.
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