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Date Calculator

Please select the date, the years, months, days and time values to add or subtract days to start using date calculator.

Starting Date
Date Format
Time Format Month Day Names
Please select starting date and
add/subtract days, months, years to calculate date.

About Date Calculator

Dear friends! Allow us present you this new and quite unique in its nature online Date Calculator, which can turn into a very useful tool for certain occasions. To put it short, this online Date Calculator calculates the duration between 2 dates, and also can perform certain arithmetical operations with them. We offer you a tool which effectively adds or subtracts days, weeks, months and years to/from a given date. It is very easy to use and can be a great help for every user of this website.

At the first sight, one may not understand why he or she could be in need of calculating the duration between two dates. Have you ever wondered, how old are you, in days, months, or hours? Our Date Calculator will help you to learn the answer to this question within minutes. Some people may need this kind of date calculations in order to manage their medicine intake or their health issues. Finally, this kind of information can be useful for businessmen dealing with certain legal documentation, for those who are planning a wedding or other important events in their life.

Help for the Date Calculator

In order to make use of this Date calculator, one should go through 4 simple steps for calculating date.

Date Input

In the box on the left above, you can select the starting day, month and year for your calculation. You can also set the starting time under the date inputs. To set a date input you may use the pre-defined dates like Today, tomorrow, yesterday. 'Now' button will set the starting time to the current moment.

Day Values and Operator

In the box on the right above, you can select the day, month and year to be added or subtracted with the starting date. There, you can also select the values of the hour, minute and second to be calculated.

Date Options

Under the date input box, you can select the date format, time format and whether the month name and day name will be shown or not. Date format is useful for showing the calculated date would be more readable.

Date Calculation Result

After selecting the starting date and the desired date options, press the Calculate Date button, and the date result will appear under the calculate button with your selected options.

Need to find how many days until a date? Check out Days Until Calculator

Information for date today: What is the date today?