Use this free hours calculator, also called a time clock calculator or time card calculator, to add up the hours you worked in a week. Enter the clock in time (start), clock out time (end) and unpaid break for each day, and get the total as hours:minutes and as decimal hours for payroll, with overtime over 40 hours and your pay if you add an hourly rate. You can also find what time it will be in a number of hours, such as 8 or 72 hours from now, or what time it was 10 hours ago, and how many hours are left until a time such as midnight. Tables show how many hours are in a week, a month and a year, and time and a half rates. It is free and instant, and your times stay in your browser.
How to calculate hours worked
Take the start time away from the end time, then take off any unpaid break. In the Time Card tab, type the start time, the end time and the break in minutes for each day you worked, and leave the other days empty. The calculator shows the hours of each day and the total for the week, as hours:minutes and as decimal hours.
9 hours8:00 to 17:30 is 9 hours 30 minutes. Taking off the 30 minute break leaves 9 hours.
Time clock calculator
A time clock calculator works out your hours from the time you clocked in and the time you clocked out. Type the clock in time in the start box and the clock out time in the end box for each day, add any unpaid break, and the Time Card tab gives the hours of each day and the total for the week. It is a calculator, not time tracking software, so nothing is recorded: your times stay in your browser.
How to fill in a time card
A time card has a row for each day. Use the Copy Monday to Tuesday–Friday button when you work the same hours every weekday. A shift that ends earlier than it starts is counted as ending the next day, so a night shift from 10:00 PM to 6:30 AM is 8 hours 30 minutes. If your employer rounds your times, choose Round times to. With the 7-minute rule, 1 to 7 minutes round down and 8 to 14 minutes round up to the quarter hour.
Hours and minutes to decimal hours
Payroll usually needs time in decimal hours instead of hours and minutes. The minutes are divided by 60, so 15 minutes is 0.25 hours, 30 minutes is 0.5 hours and 45 minutes is 0.75 hours. A week of 42 hours 30 minutes is 42.5 decimal hours. The Time Calculator has a chart of minutes as decimal hours.
Overtime and time and a half
Under the federal rule in the US (the Fair Labor Standards Act), hours over 40 in a work week are overtime and are paid at 1.5 times the regular rate, which is called time and a half. Some states also pay overtime for long days, and some staff, such as salaried managers, are exempt. This calculator uses the 40 hour week rule, so check what applies to you.
$87540 regular hours × $20 = $800, plus 2.5 overtime hours × $30 = $75, which is $875 in all.
What time will it be in a number of hours?
Use the Hours From Now tab to add hours, minutes or days to the time now on your device, or to any date and time you pick. Choose Later to look ahead, for example what time it will be in 8 hours, or Earlier to look back, for example what time it was 10 hours ago. The answer shows the time, the day of the week and the date. 72 hours is exactly 3 days, so the clock time stays the same and the date moves on by 3 days.
How many hours until a time
Use the Hours Until tab to count the hours and minutes from now to a time, such as midnight or 6:00 PM. If the date is empty and the time has already passed today, it counts to the next time the clock shows it, which is tomorrow. Pick a date to count further ahead.
How many hours are in a week, a month and a year?
A day has 24 hours and a week has 168 hours. A month has 672, 720 or 744 hours, depending on whether it has 28, 30 or 31 days, and a year has 8,760 hours, or 8,784 in a leap year. At work, a 40 hour week over 52 weeks is 2,080 hours a year. To turn hours into minutes or days, or to see how many hours 9 to 5 is, use the Time Calculator.
Daylight saving time
The calculator works on the clock as you read it and does not add or remove the hour when the clocks change. If your shift or period crosses the night the clocks go forward or back, the real hours can be one more or one less.
