Date calculators

Count days between dates, calculate exact age and business days, add or subtract days and find the day of the week.

Calculate the number of days between two dates.

Count Monday-to-Friday business days between two dates, excluding public holidays.

Enter a date and calculate how many days have passed until today.

Calculate approximately how many days, weeks and hours you have been alive.

Calculate your exact age in years, months and days.

Find the date after adding a number of days.

Find the date a number of days earlier.

Find the day of the week for any date.

Check whether a year has 365 or 366 days.