Topic

Time and Work Hours

These tools handle the arithmetic that makes time awkward: 60 minutes to an hour, 24 hours to a day, and clocks that wrap past midnight. Use them to add up durations, measure the gap between two times or convert time into the formats payroll and schedules expect.

Each calculator shows its steps, so you can check the result by hand and learn the method.

4 calculators in this topic

Time CalculatorAdd and subtract durations in hours, minutes and seconds, and see the running total.Time Duration CalculatorFind the elapsed time between two times, or between two dates and times.Decimal Hours ConverterConvert between hours and minutes and decimal hours, with a printable minutes chart.Military Time ConverterConvert between 12-hour and 24-hour (military) time, with a chart you can print.

Guides for this topic

How to Calculate Hours Worked (Breaks, Overnight)A step-by-step method for finding hours worked from clock times, including unpaid breaks, overnight shifts and a full week of totals.How to Fill Out a Time Card CorrectlyWhat goes on a paper or digital time card, how to record punches and breaks, how to fix mistakes and how to total the week.How to Convert Minutes to Decimal Hours (With Chart)Divide minutes by 60. This guide explains the method, shows a chart for common minutes and explains how to avoid rounding drift in payroll.How to Calculate the Time Between Two DatesCount days, weeks, months and years between dates by hand, handle leap years and month ends and decide whether to include the end date.