Date & Time Calculators
45 free date & time calculators in Other. The first 3 have a full write-up: the method, a worked example and questions specific to that calculator.
- Age CalculatorFind your exact age in years, months, days, hours and minutes.
- Date CalculatorAdd or subtract days from a date, or measure the span between two dates.
- Time Zone CalculatorConvert a time between any two world time zones, handling DST.
- Add Days to DateFind the date that falls a set number of days after a start date.
- Add Months to DateFind the date a set number of months after a start date.
- Age CalculatorCalculate your exact age in years, months and days from a date of birth.
- Age in DaysTotal number of days, weeks and months you have been alive.
- Age in HoursCalculate an exact age in hours, days and years from a birth date generally.
- Age in MinutesTotal the minutes, hours and days you have been alive.
- Age in MonthsFind your exact age in total months with leftover days.
- Birth WeekdayFind the weekday you were born on and your current age.
- Birthday CountdownDays until the next birthday and the weekday it falls on.
- Calendar WeeksFind how many calendar weeks a month spans and its length.
- Countdown to DateSee how many days remain until a target event date.
- Date Add DaysAdd a number of days to a date and get the new date and weekday.
- Date CountdownTrack progress toward an event between a start and target date.
- Date Subtract DaysFind the date that falls a set number of days before a given date.
- Day CounterCount total, business and weekend days between two dates, excluding holidays.
- Day of the Week CalculatorFind which weekday any date in history or the future falls on.
- Day of WeekDetermine which day of the week any date falls on.
- Day of YearFind the day number inside the year and how many days remain.
- Days Between DatesCount the exact number of days between any two dates.
- Days in MonthFind the number of days in any month of any year.
- Days SinceSee how many days, months and years have passed since a past date.
- Days Since AnniversaryDays and years since a past event, plus the next anniversary.
- Days UntilCount the days remaining until a target date from a chosen reference date.
- Hours CalculatorCount the hours and minutes between two times, minus breaks.
- ISO Week NumberFind the ISO week number and week-numbering year for a date.
- Leap Year CheckCheck whether a year is a leap year and how many days it has.
- Milestone DateFind the date a milestone number of days from a start date lands.
- Month End DateFind the last day of a month and how many days remain.
- Month ProgressSee what percentage of the current month has already passed.
- Month Start DateSee the weekday a month opens on and how long it will last.
- Months Between DatesFind how many full months and years lie between two dates.
- Next BirthdayFind when your next birthday falls and how old you will be.
- Period DurationA date span shown as combined years, months and days.
- Time CalculatorAdd, subtract, multiply and divide time expressed in days, hours, minutes and seconds.
- Time Card CalculatorTotal a weekly timesheet with breaks, overtime and pay.
- Time Duration CalculatorMeasure the precise duration between two date-times, down to seconds.
- United States Commute TimeCalculate commute time from a few simple inputs in the United States.
- US AgeCalculate exact age in years, months, days and hours between two dates in the United States.
- Weekday CountCount how many of a chosen weekday occur between two dates.
- Weeks Between DatesExpress the span between two dates in weeks and days.
- Year RemainingFind the days, weeks and percentage left in the year.
- Years Between DatesFind the exact calendar span between two dates generally.