Date & Time

Age, date difference and time-duration calculators.

• Age CalculatorCalculate your exact age in years, months, days, weeks, hours and minutes from your date of birth.
• Age Difference CalculatorFind the exact age gap between two people in years, months and days.
• Date Difference CalculatorCalculate the difference between two dates in years, months and days.
• Days Between Dates CalculatorCalculate the total number of days between two dates.
• Date CalculatorAdd or subtract days, weeks, months or years from a date.
• Day CalculatorAdd or subtract a number of days, weeks, months or years from a date.
• Days CalculatorCalculate a new date by adding or subtracting a number of days, weeks, months or years.
• Date Add CalculatorAdd days, weeks, months or years to a date.
• Date Subtract CalculatorSubtract days, weeks, months or years from a date.
• Time Duration CalculatorCalculate the duration between two times of day, in hours and minutes.
• Hours CalculatorCalculate the number of hours and minutes between two times.
• Time CalculatorCalculate the duration between two times of day.
• Minutes CalculatorCalculate the total number of minutes between two times of day.
• Seconds CalculatorCalculate the total number of seconds between two times of day.
• Week Number CalculatorFind the ISO 8601 week number for any date.