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Excel Formula: Add business days to date

Author: Sun Last Modified: 2020-04-29

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When you start a project that needs 35 business days to complete, you may want to know which date is the end date. In Excel, the WORKDAY function or the WORKDAY.INTL function can help you.

WORKDAY function: add business days to a date excluding Saturday and Sunday and holidays.

WORKDAT.INTL function: add business days to date excluding certain days (custom weekend) and holidays.

WORKDAY Function

 

Generic formula:

WORKDAY(start_date, days, [holidays])

Arguments

Star_date: the start date that used to calculate the end date.
Days: the number of business days that you want to add.
Holidays: a list of dates that you want to exclude when calculating.

How this formula work

Example 1: Add business days excluding weekend to a date

To add 30 business days to the date in cell B3, please use below formula:

=WORKDAY(B3,30)

Or If the cell B4 contains the argument days, you can use the formula:

=WORKDAY(B3,C3)

Press Enter key to get a serial number, see screenshot:
doc add business days to date 2

Then format the result cell to a date format.

Keep the result cell selected, click Home > Number Format drop down list, then select Short Date or Long Date.
doc add business days to date 3doc add business days to date 4

Example 2: Add business days excluding weekend and holidays to a date

The start date is in cell B3, the number of business days needed to be added is in cell C3, holidays dates are listed in F3:F5, please use below formula:

=WORKDAY(B3,C3, $F$3:$F$5)

Press Enter key to get a serial number, see screenshot:
doc add business days to date 5

If the result is a date format, click Home > Number Format drop down list, then select Short Date or Long Date.
doc add business days to date 3

Click here to know more details about WORKDAY function

WORKDAY.INTL Function

 

Generic formula:

WORKDAY.INTL(start_date, days, [weekend],[holidays])

Arguments

Star_date: the start date that used to calculate the end date.
Days: the number of business days that you want to add.
Weekend: A number or a serial number determines which days of week are considered as weekends in the formula. If it is omitted, it takes Saturday and Sunday as weekends by default.
Holidays: a list of dates that you want to exclude when calculating.

Number Weekend Days
1(default) Saturday and Sunday
2 Sunday and Monday
3 Monday and Tuesday
4 Tuesday and Wednesday
5 Wednesday and Thursday
6 Thursday and Friday
7 Friday and Saturday
11 Sunday only
12 Monday only
13 Tuesday only
14 Wednesday only
15 Thursday only
16 Friday only
17 Saturday only

How this formula work

Example 1: Add business days excluding Monday to a date

In cell B3 is the start date, cell C3 is the number of business days you want to add, please use below formula:

=WORKDAY.INTL(B3,C3,12)

Press Enter key, if it gets a serial number as result, please click Home > Number Format drop down list, then select Short Date or Long Date.
doc add business days to date 6

Example 2: Add business days excluding Sunday and Monday and holidays to a date

The start date is in cell B3, the business days needed to be added in cell C3 which is 69, and holidays are listed in F3:F5, please use below formula:

=WORKDAY.INTL(B3,C3,2,$F$3:$F$5)

Press Enter key to get a serial number, see screenshot:
doc add business days to date 7

Click here to know more details about WORKDAY.INTL function

Sample File

doc sampleClick to download sample file


Relative Formulas

  • Extract Or Get Time Only From Datetime In Excel
    If you have a list of datetime cells, now, you want to pull out all the times only from the datetime cells. In Excel, there are some functions can help you to solve this job, such as: TIME and MOD functions.
  • Extract Or Get Date Only From The Datetime In Excel
    To extract only date from a list of datetime cells in Excel worksheet, the INT, TRUNC and DATE functions can help you to deal with this job quickly and easily.
  • Get Week Number From Date In Excel
    In Excel, how could you get week number from the given date quickly and easily? Normally, the WEEKNUM function can help you to solve this task as quickly as possible.
  • Get Work Hours Between Two Dates In Excel
    The NETWORKDAYS function in Excel can help you to get the net workdays between two dates, and then multiply the number of working hours per workday to get the total work hours.
Relative Functions
  • 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 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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