Date Calculators
Age and date-difference tools, accurate to the day.
Age Calculator
Find your exact age in years, months and days, plus the weekday you were born.
Date Difference Calculator
Count the number of days between two dates, including business days.
Date Add / Subtract Calculator
Add or subtract days, weeks, months and years to any date, with the resulting weekday.
Day of Week Calculator
Find the weekday of any date, plus its day of year and Julian day number.
Days Until Calculator
Count days until a date — total days, business days, weeks and months.