Free Date & Time Tools
Date and time calculators. Work out ages, date differences, and durations precisely, with the counting method explained on each page.
Age Calculator
Find your exact age in years, months, and days from a date of birth, plus your total age in days and a countdown to your next birthday.
Date Difference Calculator
Find the time between any two dates — in years, months, and days, and as a total number of days and weeks.
Days Until Calculator
Count how many days are left until a future date, such as a holiday, deadline, birthday, or event.