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Excel Formula: Add or Subtract Days to Date

Author: Sun Last Modified: 2020-05-29

doc add subtract days to date 1

In Excel, you can use formula to add or subtract a specific number of days to the current date (today) or a future or past date.

Adding days

 

Generic formula:

date+days

Arguments

Date: the date you used to add days or subtract days. It cannot be text, or the formula returns #VALUE! error.
Days: a number represents the number of days you want to add or subtract from the given date. It cannot be text, or the formula returns #VALUE! error. If it is a positive number, the formula will add days, if the argument days is a negative number, the formula will subtract days.

How this formula work

To add 49 days (placed in cell C3) to the date placed in cell B3, please use below formula:

=B3+C3

Press Enter key to get the result.
doc add subtract days to date 2

Notes:

1. If the result is a serial number, click Home > Format Number drop down list to select Short Date or Long Date to format the result as date.
doc add subtract days to date 3

2. If you want to directly enter date and days in formula, please combine the DATE function in to the formula as below screenshot shown:

=DATE(2020,1,25)+49

3. If you want to add or subtract days to the current date, you can use the formula as this:

=TODAY()+49

4. In Excel, date is stored as serial number for better calculation. In default, 1 indicates Jan 1, 1900. Thus, you can directly add days to a serial number to get a date. As 25/1/2020 is 43855 days after Jan 1, 1900, you can use the formula like this:

=43855+49

Then format the result as date.

Sample File

doc sampleClick to download sample file


Relative Formulas

Relative Functions
  • Excel Date Function
    DATE function can help us to combine year, month and day numbers from separate cells to a valid date.
  • Excel WEEKDAY Function
    WEEKDAY function returns an integer number from 1 to 7 to represent the day of the week for a given date in Excel.
  • Excel WORKDAY Function
    The WORKDAY is used to add a specified number of workdays to a started date and returns the future or past date in a serial number format.
  • Excel WORKDAY.INTL Function
    WORKDAY.INTL function adds a specified number of workdays to a start date and returns a workday in the future or past.
  • Excel YEAR Function
    The YEAR function returns the year based on the given date in a 4-digit serial number format.

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