Date & Time Tools
Quick, accurate date maths for everyday life and work. Find your exact age and next birthday with the age calculator, count the days between two dates with the date difference calculator, and find a deadline with add days to a date.
For business timelines, the working days calculator excludes Sundays, bank-style 2nd and 4th Saturdays and your own holiday list. Schedule calls abroad with the time zone converter, which handles daylight saving automatically, and count down to exams, weddings or festivals with a shareable countdown timer. Curious what day a date falls on? Use the day of the week finder. For exam eligibility by cut-off date, see the age as on date calculator. All calculations run instantly in your browser.
- Age CalculatorCalculate your exact age in years, months and days from your date of birth, plus total days, weeks and your next birthday countdown. Free.
- Date Difference CalculatorCount the days, weeks, months and years between two dates, with an option to include the end date. Instant, accurate and free.
- Add or Subtract Days from a DateAdd or subtract days, weeks, months or years from any date to find the resulting date and weekday. For deadlines, due dates and validity.
- Working Days CalculatorCount working days between two dates excluding Sundays, all or 2nd/4th Saturdays (bank holidays) and your own holiday list. Free, instant.
- Time Zone ConverterConvert time between any time zones, including EST, PST, GMT, CET, IST and JST, with daylight saving handled. Compare several zones at once.
- Countdown to a DateCreate a live countdown to an exam, wedding, festival or launch date, showing days, hours, minutes and seconds. Share it with a link.
- Day of the Week FinderFind the day of the week for any past or future date, with the day of the year and ISO week number. Handy for birthdays and history.