Date calculators

Count a wait, compare dates, plan working days or check your age.

Count down to any date

Count days, weeks and sleeps to any date.

Add or subtract time

Add or subtract days, weeks, months or years.

Find a date from today

Find the date 30, 60, 90 or any number of days away.

Count days between dates

Count a span, with or without the end date.

Calculate your age

Your age in years, months and days. Next birthday, too.

Calculate your hours

Find elapsed hours, including breaks and overnight.

Count working days

Skip weekends and observed US federal holidays.

Find your week number

Compare ISO weeks with Sunday-start weeks.

Make a live countdown

Watch the seconds to your chosen date and time.

Find the day of the year

Find the day number and days left in the year.

Compare days in each month

Check every month, including leap-year February.

Check days in a year

Find out whether your year has a leap day.

Convert a time span

Turn hours, days and weeks into other units.

How many days until my birthday?

Enter your birthday to see how many days are left until the next one, the weekday it falls on and, with a birth year, the age you will turn.

Count down to the seasons

Count toward the next equinox or solstice.

Search