ClockTotals
35+ free calculators · no sign-up

Free Work Hours & Timesheet Calculators

ClockTotals is a free time calculator and date calculator site. Find the hours between times for one shift, or add up a whole week with the time card calculator. You can also see how many days until Christmas or any other date, and count the days between two dates. There is nothing to sign up for.

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Time card calculatorPut in a week of punches and lunches. It splits regular time from overtime.Open calculator Work hours calculatorIn at 9:00 and out at 5:30 gives 8 hours 30 minutes for the day.Open calculator Weekly timesheet calculatorOne row for each day from Monday to Sunday, with a total at the bottom.Open calculator Date difference calculatorPick two dates to see the gap in days, weeks, months and years.Open calculator

No calculator matches your search. Try “hours”, “days”, “week” or “convert”.

Upcoming holidays

All countdowns
HalloweenOctober 31 ThanksgivingLate November Black FridayDay after Thanksgiving ChristmasDecember 25 New Year's EveDecember 31 New Year's DayJanuary 1 DiwaliOctober or November HanukkahUsually December Valentine's DayFebruary 14 EasterMarch or April Lunar New YearJanuary or February RamadanMoves each year

Work Hours & Timesheets

Hours between timesA 10 p.m. start and 6:30 a.m. finish comes to 8 hours 30 minutes. Break time calculatorKnocks lunch and other unpaid breaks off the day, so 9 hours with a half-hour lunch pays 8.5. Night shift hours calculatorHandles shifts that run past midnight and can add a night differential to the pay. Military time calculatorReads 1730 as 5:30 p.m. (and the other way round) and times the gap between punches. Biweekly timesheet calculatorTwo weeks on one sheet, with overtime worked out for each week on its own. 12-hour shift calculatorCovers 2-2-3 and other 12-hour rotas, with the hours and overtime per week.

Overtime, Payroll & Time Conversions

Overtime plannerEnter the hours you have done and the shifts left to see when overtime starts. Overtime calculatorOver 40 a week, over 8 a day, double time, or a rate you set yourself. Hours to decimal calculator7:45 becomes 7.75, which is the number most payroll forms want. Time clock rounding calculatorRounds each punch to the nearest 5, 6 or 15 minutes, as many time clocks do. Hours and minutes calculatorAdd up a list like 2:15, 3:50 and 1:05, or take one time away from another. Hourly to salary calculator$22 an hour for 40 hours a week is $45,760 a year. It works in reverse too.

Time & Date Calculators

Business days calculatorCounts Monday to Friday between two dates. US federal holidays can be left out. Add time calculatorAdds or takes away hours and minutes, so 10:50 a.m. plus 3:20 is 2:10 p.m. Week number calculatorShows the ISO week number and the US one, where weeks start on Sunday. Unix timestamp converterTurns a Unix time such as 1767225600 into a normal date, in seconds or milliseconds. Age calculatorYour age in years, months and days, plus the wait until your next birthday. Add days calculatorMove any date forward or back by days, weeks or months, such as 90 days. Time zone converterMove a time from one zone to another, say 9 a.m. in New York to London.

Countdown Calculators

Countdown timer to any dateBuild a live countdown to your own date and time, then share the link. Countdown widget for websitesPaste a free Christmas, holiday or custom countdown into your own site or blog. When do the clocks go back?Dates of the next clock change in the UK, Europe, the US, Australia and New Zealand. Paydays until ChristmasLists each payday left before Christmas for weekly, biweekly or monthly pay. Working days until ChristmasWeekdays left before Christmas in the US, UK, Canada and Australia, minus holidays. Weeks left in the year calculatorWhole weeks and spare days left before December 31. Weeks until a date calculatorWeeks and days from today, or from a start date you choose, to any date. Holiday countdownDays left until the next big holidays and other special dates. Days from today calculatorThe date and weekday a set number of days from now, such as 45 days. Hours until calculatorHours and minutes from right now until a date and time you pick. Work days left calculatorWeekdays still left in this month or in the rest of this year. Days left in the year calculatorCalendar days left until the year ends on December 31. Year progress calculatorHow much of this year is gone, as a percentage, and how much is left. Months left calculatorFull calendar months left in the current year. Months until calculatorWhole calendar months from today, or from a start date, to the date you set. Countdowns to dates and holidaysDays until each date, month, holiday and season, with weeks and months too. Weekends untilThe Saturdays and Sundays left before a date or holiday. Business days untilWorking days left before a date, minus US federal holidays.

Life & Age

Death clockStatistical time left as a live countdown, with the real range from CDC tables. Weeks until you dieYour life in weeks on one chart, with the odds of reaching each week ahead. Life expectancy calculatorYears and weeks left on average for your age and sex, plus couple odds. Life expectancy by ageYears left at every age from 0 to 100 for men, women and everyone. Life milestonesWhen you turn 10,000 days, 1 billion seconds or 1,000 weeks old.

Calendar & Sky Facts

Next full moonThe next full moon with exact Eastern and Pacific time, and the next 12. What week is it?Today's week number (ISO and US) and every week of the year. What quarter is it?The current calendar and US federal fiscal quarter, with dates. Leap yearIs this a leap year, the next one, and every leap year to 2100. When do clocks change?The next daylight saving time change in the US and Europe. Time zone pairsEST to PST and other common pairs, with today's difference.

Conversions & Quick Calculations

Small tools for moving between hours, minutes and decimal time on a timesheet.

Hours to minutes converterConvert hours to minutes or convert minutes back to hours. All time convertersMilitary time, Unix timestamps, time zones and more.

Also on the site: a percentage calculator and a temperature converter.

Work Hours & Timesheet Guides

Step-by-step examples you can check with a pen. Browse all time and pay guides.

How to calculate work hoursClock times to minutes, lunch taken off, night shifts, the weekly total and Excel formulas. Time clock rounding guideThe 7-minute rule, 5 and 6-minute rounding, and what federal and California law say.

How do I calculate hours worked?

Subtract the clock-in time from the clock-out time, then subtract unpaid breaks. For 8:30 a.m. to 5:15 p.m. with a 30-minute lunch: 8 hours 45 minutes minus 30 minutes is 8 hours 15 minutes, or 8.25 decimal hours. Add the days for the weekly total; hours over 40 in a week are federal overtime.

The time card calculator does this for a whole week, including overnight shifts and rounding. Step by step: how to calculate work hours.

Frequently asked questions

Is ClockTotals free?

Yes. Every calculator and countdown is free with no sign-up. The calculators run in your browser, so the times, dates and pay rates you enter are not sent to us.

How is overtime calculated?

Under the federal Fair Labor Standards Act, non-exempt employees are paid at least 1.5 times their regular rate for hours over 40 in a workweek (US Department of Labor). Some states add daily overtime, such as California after 8 hours in a day. The overtime calculator handles both.

How do I convert minutes to decimal hours?

Divide the minutes by 60, so a quarter hour is 0.25, half an hour 0.5 and 45 minutes 0.75. A 7:45 shift goes on payroll as 7.75. The hours to decimal calculator converts any time and has a full table.

How many days until Christmas?

The Christmas countdown has the days, weeks, weekends and business days to go, and a live clock counting down to the midnight that starts Christmas Day, in your time zone. Halloween, Diwali, Easter and 240-odd other dates get one too.

How many working days are in a year?

Take the 261 weekdays of 2026, remove the 11 US federal holidays, and 250 working days are left, or 2,000 hours at 8 a day. The working days by year pages split that by month and cover the UK, Canada and Australia as well.

Where does the life expectancy data come from?

It comes from the 2024 US life tables published by the CDC's National Center for Health Statistics (CDC FastStats). The life expectancy by age pages give the average years left at each age; they aren't a forecast for any one person.

How many days are left in the year?

Today, November 3, 2026, there are 58 days left, which is 8 weeks and 2 days, and the year is about 84% over. The days left in the year counter moves on at each midnight, and there are pages for weeks remaining, full months left and the year progress percentage.

By ·Software Engineer and Full-Stack Developer·Updated

For a stack of paper time cards, the time card calculator is the quickest place to begin.