Date & Time Calculators
Counting days on a calendar is slow and easy to get wrong, especially across months of different lengths and leap years. These date and time tools do it instantly: your exact age in years, months and days, the number of days between two dates, what date it will be in 90 days, how many working days a project has, and what time a meeting is in another city.
Everything runs in your browser using your device's calendar and time zone data, so results reflect daylight saving changes automatically.
Age CalculatorCalculate your exact age in years, months and days from your date of birth, plus total weeks and days lived and a countdown to your next birthday.Date Difference CalculatorCount the number of days between two dates, and see the difference in weeks, months and years, hours and minutes, with an option to include the end date.Add or Subtract Days from a DateAdd or subtract days, weeks, months or years to or from any date to find the resulting date and its day of the week, such as 90 days from today.Countdown TimerCount down the days, hours, minutes and seconds to any date and time, live.Time Zone ConverterConvert a date and time from one time zone to another, with daylight saving handled automatically, and see the same moment in major world cities.Working Days CalculatorCount the working days between two dates, excluding weekends and any public holidays you list, for project plans, notice periods and delivery times.