Calculate time differences, convert hours, track work shifts, find working days, calculate your age, and solve everyday time-related calculations quickly.
Popular Calculators
Start with some of the most useful calculators on CalculatorSpan.
Time Calculator
Add, subtract, and calculate time.
Date Difference Calculator
Find the difference between two dates.
Timecard Calculator
Calculate total work hours.
Countdown Timer Online
Count down to any date, or run a timer.
Time Calculators
Add, subtract, and convert time, or work out what time it was and will be.
Time Calculator
Add or subtract hours, minutes, and seconds.
Hours Ago Calculator
Find the exact time and date from hours ago.
Hours From Now Calculator
Find the future time and date after any number of hours.
How Long Until 12:00 AM?
See how much time remains until midnight.
Countdown Timer Online
Count down to any date, or run a timer with sound.
Arrival Time Calculator
Calculate when you will arrive at your destination.
Break Time Calculator
Calculate break duration and remaining work time.
Date Calculators
Count days, weeks, and working days between any two dates.
Date Difference Calculator
Calculate the difference between two dates.
Age Calculator
Find your exact age in years, months, and days.
Working Days Calculator
Calculate working days between two dates.
Days Until Calculator
Count the days remaining until any future date.
Weeks Left in the Year
See how many weeks remain in the current year.
Work and Payroll Calculators
Track shifts, total up timesheets, convert hours for payroll, and plan delivery windows.
Timecard Calculator
Calculate daily and weekly work hours.
Hours and Minutes to Decimal Calculator
Convert hours and minutes into decimal hours.
Time and a Half Calculator
Calculate overtime pay at time and a half.
Lead Time Calculator
Calculate lead time and expected completion dates.
Converters
Switch between time formats and decimal hours.
Military Time Converter
Convert between standard and 24-hour military time.
Calculadoras em Português
A versão em português do CalculatorSpan.
Calculadoras em Português
Acesse a versão em português do CalculatorSpan.
Calculadora de Tempo
Faça cálculos de horas, minutos e segundos.
Calculadora de Diferença Entre Datas
Calcule a diferença entre duas datas.
Calculadora de Horas Atrás
Descubra que horas eram há determinado tempo.
Calculadora de Horas a Partir de Agora
Descubra o horário após qualquer número de horas.
Simple Tools for Everyday Calculations
CalculatorSpan provides free online calculators for common time, date, and work-related calculations. Whether you need to calculate the time between two events, track work hours, convert time formats, or find the difference between dates, you can find the right tool here.
The tools fall into four groups. Time calculators work with the clock: adding durations, finding a past or future moment, counting down to a target. Date calculators work with the calendar and return whole days, weeks, or business days between two points. Work and payroll tools total shifts, handle overtime, and cover delivery planning. Converters move a value from one format to another without changing what it means.
Our calculators are designed to be simple, fast, and easy to use on desktop and mobile devices. Enter your values and get your result without unnecessary steps.