Date Calculators: Days Between Dates, Ages and More
Date calculators save counting on a calendar. Find the number of days or working days between two dates, what date it will be in 90 days, or exactly how old someone is in years, months and days.
Every result allows for leap years and the different lengths of months.
Age CalculatorFind an exact age in years, months and days, and the next birthday.Days Until CalculatorCount the days, weeks and months until any date.Add Days to Date CalculatorAdd or subtract days, weeks, months or years from a date.Date CalculatorAdd or subtract years, months, weeks and days from any date, with the month end rules shown.Day of the Week CalculatorFind the day of the week for any date in the past or future, and see how that date falls in later years.Birthday CalculatorSee the day you were born, your next birthday and half birthday, how many days you have lived and the dates of your milestones.Julian Date ConverterConvert a date and time to a Julian date, Julian day number, modified Julian date and day of year format, and back.UK School Year CalculatorFind a child's school year group in England from their date of birth, using the 1 September cut-off.Weekday CounterCount how many Mondays, Tuesdays and every other weekday fall between two dates.Date Format ConverterShow a date in UK, US, international standard and written formats, and check whether a numeric date such as 03/04/2026 is ambiguous.Date Difference CalculatorCount the years, months and days between two dates, plus total days, weeks and working days.Working Days CalculatorAdd or subtract working days from a date, skipping weekends and England and Wales bank holidays.
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