Date Calculator

Add or subtract days from a date, count days between dates and get the most accurate result.

Add/Subtract Days to Date

START DATE
Aug
12
2020
DAYS
WEEKS
MONTHS
YEARS

Days Between Dates

START DATE
Aug
12
2020
END DATE
Aug
12
2020
Settings
All days between dates will be calculated.
Add to Bookmarks Press Ctrl+D (for Windows / Linux) or Cmd+D (for MacOS)

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How to Add Days to Date

  1. Enter the start date

    To get started, enter the start date to which you need to add/subtract days (today's date is initially displayed). Use the calendar for more convenient date selection.
  2. Enter the number of days

    Next, enter the time value you need to add or subtract from the start date (years, months, weeks, days).
  3. Get the result

    Finally сlick the «Calculate» button and you will receive a final date and some facts about this date that are easy to copy to the clipboard.

How to Calculate Days Between Dates

  1. Enter the start date

    To get started, enter the start date from which the calculation will be made (today's date is initially displayed). Use the calendar for more convenient date selection.
  2. Enter the end date

    Enter the date by which you need to make a calculation. You can also use the settings to calculate only work days, or vice versa only weekends and holidays.
  3. Get the result

    Click the «Calculate» button and you will get the total number of days that can also be converted to different time units. Copy the result or link to the result if you want to share it.

Key Features of the Date Calculator

The date calculator can come in handy for you in various cases. Firstly, you can calculate what date will be if you add or subtract a certain period of time to the original date. So you can calculate the date you need.

Another use case suggests the opposite. You know two dates and you need to calculate what time period separates these two dates. Moreover, you can calculate this period not only in days but also in other units of time - seconds, minutes, hours, weeks and even years. What is important, not only the start and end dates can be taken into account, but also the exact time (if necessary). So you can get the result you need with extreme accuracy. For your convenience, you can easily copy all the results in one click.

The process of selecting the start and end dates is very convenient and simple. You can enter all the data using the keyboard, or mark the desired dates in the drop-down calendar.

Example:
Imagine that your holidays start on March 27th. You know that this will continue for 24 days. Now you need to know the end date by adding 24 days to the 27th of March. Just enter the date and number of days in the calculator and get a new date - April 20th!