Date tools

Compare dates, count days/weeks/months, add or subtract days, and find working-day or calendar details.

Calculate calendar days between two dates, with weeks, working days and weekend days.

Calculate how many calendar days remain until a future date.

Find how many days have passed since a date. See elapsed weeks and days, compare with today or another date, and include leap days automatically.

Calculate the weeks between two dates. See complete weeks, remaining days and total calendar days, including leap years, with our free calculator.

Calculate calendar-aware months and days between two dates.

Calculate the calendar difference between dates in years, months and days.

Find a date in the future or travel back a few days.

Look up the ISO week number for any date.

Find a date’s day number within the year.

Count Monday–Friday working days between dates.

Available tools