CHOOSE THE RIGHT TOOL

Calendar

Plan dates and celebrate milestones with clear calendar calculations on your device.

Which tool should I use?

Calculate calendar days, weeks and working days between dates privately, with custom weekends and holidays.

Check whether a year has 365 or 366 days using the Gregorian leap-year rule. Free, private and instant.

Calculate age in years, months and days, see running elapsed time, birthday countdowns and approximate zodiac symbols.

Add or subtract days, weeks, months or years. Find the resulting date and weekday privately in your browser.