Tools · Date & Time Calculators
Age Calculator
Work out an exact age in years, months and days from a date of birth.
Open toolDate Difference Calculator
Find the number of days, weeks, months and years between two dates.
Open toolWorking Days Calculator
Count the working days between two dates, skipping weekends and your holidays.
Open toolAdd or Subtract Days from a Date
Add or subtract days, weeks, months or years to any date.
Open toolTime Duration Calculator
Work out the time between a start and end time, with an optional unpaid break.
Open toolCountdown Calculator
See how many days, hours and minutes are left until a date.
Open toolWhat you can do
Date maths is easy to get wrong by hand. These calculators handle leap years and month lengths for you, so you can find an exact age, count the days between two dates, or add days to a date.
Work out how many working days are in a period, measure the time between two clock times, or count down to an event.
- Exact age in years, months and days
- Days between two dates
- Add or subtract days from a date
- Working days, time duration and countdown
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