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Work Hours Calculator

$
hours/week
Monday
min
Tuesday
min
Wednesday
min
Thursday
min
Friday
min
Saturday
min
Sunday
min

Leave a day empty if you didn't work it. A shift that ends after midnight counts toward the day it started.

Your Results

You worked 43:00 hours (43.00 in decimal) over 6 days: 40.00 regular and 3.00 overtime, counting hours over 40 a week. At $20.00 an hour and $30.00 for overtime, that's $890.00 before taxes.

43:00
Total hours this week (h:mm)
43.00
In Decimal Hours
40:00
Regular Hours
3:00
Overtime Hours
$890.00
Gross Pay

Hours worked each day

  • Regular
  • Overtime
Time Card
DayStartEndBreakHoursDecimal
Mon9:00 AM5:30 PM30 min8:008.00
Tue9:00 AM5:30 PM30 min8:008.00
Wed9:00 AM5:30 PM30 min8:008.00
Thu9:00 AM5:30 PM30 min8:008.00
Fri9:00 AM5:30 PM30 min8:008.00
Sat9:00 AM12:00 PM–3:003.00
Sun–––0:000.00
Regular40:0040.00
Overtime (over 40 h)3:003.00
Total43:0043.00

Hours = end − start − break, in hours:minutes, and in decimal hours for payroll (30 minutes = 0.50). Regular pay (40.00 h × $20.00): $800.00; Overtime pay (3.00 h × $30.00): $90.00; Gross pay, before taxes: $890.00.

What Are Work Hours?

Your work hours are the time between clocking in and clocking out, less unpaid breaks such as a lunch break. Adding them up for the week, often on a time card or timesheet, is how hourly pay and overtime are worked out.

  • Hours and minutes (h:mm): the time as a clock shows it, such as 8:30 for eight and a half hours.
  • Decimal hours: the same time as a number, such as 8.50, which payroll uses to multiply by your pay rate. 15 minutes is 0.25, 30 is 0.50 and 45 is 0.75.
  • Regular and overtime hours: in the US, the Fair Labor Standards Act requires most hourly workers to get at least 1.5 times their pay rate for hours over 40 in a workweek. Some states and employers also pay overtime by the day.

Which calculator should I use?

  • Work Hours Calculator: a whole week of shifts, with overtime, pay and a time card to print or save as a PDF.
  • Hours Calculator: just the hours and minutes between one start and one end time, such as a single shift.

How to Calculate Work Hours

For each day, subtract the start time from the end time, then take away the break:

Hours=End−Start−Break

Add the days together for the week, then split off overtime and work out pay:

Pay=R×rate+O×rate×1.5
  • End and Start: the times you clocked out and in. If the shift ends after midnight, add 24 hours to the end time first.
  • Break: unpaid break time in minutes, such as a 30-minute lunch.
  • R: regular hours, up to the overtime limit (usually 40 a week).
  • O: overtime hours, the week's hours over the limit.
  • Rate: your hourly pay. 1.5 is time and a half; some jobs pay double time (2) instead.

To turn minutes into decimal hours, divide by 60: 26 minutes is 26 ÷ 60 = 0.43 hours.

Example

  • Monday from 9:00 AM to 5:30 PM with a 30-minute lunch: 8 hours 30 minutes − 30 minutes = 8:00 hours.
  • From 8:47 AM to 5:13 PM with no break: 8:26, or 8.43 in decimal hours.
  • A night shift from 10:00 PM to 6:30 AM with a 30-minute break: 6:30 + 24:00 − 22:00 − 0:30 = 8:00.
  • Monday to Friday like Monday, plus Saturday from 9:00 AM to 12:00 PM: 43:00 hours, so 40.00 regular and 3.00 overtime.
  • At $20 an hour: 40.00 × $20 + 3.00 × $30 = $890.00 before taxes.

How to Use the Work Hours Calculator

"I worked 9 to 5:30 with a half-hour lunch Monday to Friday, plus Saturday morning. How many hours is that, how much overtime, and what's my pay?" This calculator answers that.

Let's enter the numbers for this example in each box. They are already filled in when the calculator opens, so you can follow along and then change any box to match your own week.

  • Name (Optional): Enter your name, or leave it empty. It appears only on the printed time card and PDF. Up to 60 characters.
  • Report Date: This shows today's date. Change it to the pay date or the last day of the week if you like; it's printed on the time card.
  • Hourly Pay: Enter 20.00, your pay per hour before taxes. Leave it at 0 to see hours only.
  • Overtime After: Enter 40, the hours a week before overtime starts. Enter 168 for no overtime. It can be from 0 to 168.
  • Overtime Pay: Choose 1.5× (time and a half). Choose 2× for double time, or 1× if overtime is paid at the normal rate.
  • Round Times: Choose No rounding, or the nearest 5, 6 or 15 minutes if your employer rounds clock times.
  • Each day: Enter a start time of 9:00 AM, an end time of 5:30 PM and a 30-minute break for Monday to Friday, and 9:00 AM to 12:00 PM with no break for Saturday. Leave Sunday empty. × beside a day clears it.

Calculate and Reset

Click Calculate to see your results. If a box has a problem, such as a start time without an end time or a break longer than the shift, a message pops up under that box instead. With the default numbers you get:

  • Your Results: the week's total (43:00, or 43.00 in decimal), the regular and overtime hours, and the gross pay ($890.00).
  • Total hours this week: the headline, 43:00 in hours and minutes.
  • In Decimal Hours, Regular Hours and Overtime Hours: 43.00, 40:00 and 3:00.
  • Gross Pay: $890.00 before taxes and deductions. With no hourly pay entered, this shows the days worked instead.
  • Hours worked each day: a chart of each day's hours, with overtime in amber. Overtime starts on the day the week passes the limit, here Saturday.
  • Time Card: each day's start, end, break and hours, with regular, overtime and total hours underneath.
  • Print and Download PDF: a clean time card with your name (if entered) and the report date, the week's table, totals and pay, and lines for the employee's and supervisor's signatures and dates, ready to hand in or keep.
  • Share Results: a link that opens this calculator with your week filled in. Copy it, or share it on Facebook or X.

Click Reset to put every box back to its default and show the default results again. Overtime rules differ by country, state and job, so check yours. Pay shown is gross, before taxes. This is for information only, not legal or payroll advice.