Date and Time Calculators

Durations, ages and date differences.

• Date Difference Calculator

  Years, months, days and total days between two dates.

• Add or Subtract Dates Calculator

  Add or subtract years, months, weeks and days from a date.

• Time Duration Calculator

  Hours and minutes between two clock times, including overnight spans and breaks.

• Age Calculator

  Exact age in years, months and days, and days until the next birthday.

• Business Days Calculator

  Count working days between two dates, excluding weekends and your holidays.