Excel WORKDAY.INTL Function
Summary
The Excel WORKDAY.INTL
function takes a date and returns the nearest working in the future or past
based on an offset value you provide. Unlike the WORKDAY function, WORKDAY.INTL
allows you to customize which days are considered weekends (non-working days).
You can use WORKDAY.INTL function to calculate completion dates, ship dates
etc. that take into account non-working days.
Purpose
Get date n working days in
future or past Return value Next or previous working date based on inputs
Syntax
=WORKDAY.INTL
(start_date, days, [weekend], [holidays])
Arguments
· start_date - The start date.
· days - The end date.
· weekend - [optional] Setting for which days of the
week should be considered weekends.
· holidays - [optional] A list of one or more dates that
should be considered non-work days.
Usage notes
WORKDAY.INTL figures out a
date that represents the "nearest" working day N days in the past or
future. Use a positive number as days for future dates and a negative number
for past dates. This function is more robust than the WORKDAY function because
it lets you customize which days of the week are considered weekends. Example formulas
D4=WORKDAY.INTL(B4,C4)
// default - weekends excluded D5=WORKDAY.INTL(B5,C5,11) // weekend set to
Sunday only
D6=WORKDAY.INTL(B6,C6,1,B9:B9)
// default weekend with holidays
Weekends
By default, WORKDAY.INTL will
exclude weekends (Saturday and Sunday). However, you can control which days are
considered weekends by supplying a code from the table below for the weekend
argument. Another easier way to specify weekend days is to use a
"mask" to indicate weekends with ones and zeros. In this scheme a
string of 7 ones and zeros are provided to indicate weekends were the first
character is Monday and the last character is Sunday. Use one (1) to indicate
weekend and zero (0) to indicate a working day. This method is more flexible
since it allows you to designate any day of the week as a weekend i.e.
non-working day.
For example:
=WORKDAY.INTL(A1,3,"0000000")
// no weekends
=WORKDAY.INTL(A1,3,"1000000")
// weekend = Mon =WORKDAY.INTL(A1,3,"1100000") // weekend = Mon+Tue
=WORKDAY.INTL(A1,3,"1110000") // weekend = Mon+Tue+Wed
=WORKDAY.INTL(A1,3,"1010000") // weekend = Mon+Wed
Holidays
WORKDAY.INTL can also
optionally take into account holidays. For the holidays argument, supply a
range that contains holiday dates. These dates are treated as non-working days
and will not be included in the result. Weekend codes Use any of the codes
below for the weekend argument to select a "fixed" weekend option.
Code |
Weekend days |
1 (default) |
Saturday, Sunday |
2 |
Sunday, Monday |
3 |
Monday, Tuesday |
4 |
Tuesday, Wednesday |
5 |
Wednesday, Thursday |
6 |
Thursday, Friday |
7 |
Friday, Saturday |
11 |
Sunday only |
12 |
Monday only |
13 |
Tuesday only |
14 |
Wednesday only |
15 |
Thursday only |
16 |
Friday only |
17 |
Saturday only |
Notes:
· If start_date is invalid, WORKDAY.INTL returns the
#NUM! error.
· If start_date + day is invalid, WORKDAY.INTL returns
the #NUM! error.
· If any holiday is invalid, WORKDAY.INTL returns the
#NUM! error.
· If weekend is invalid, WORKDAY.INTL returns the
#VALUE! error.
Last n days
Explanation
To check if a date is within
the last n days of today's date you can use a formula based on the TODAY and
AND functions when both results are TRUE, the AND function will return TRUE. If
either result is FALSE, the AND function will return FALSE.
Without future checks
The second test is meant to
exclude any dates greater than or equal to today. This test only makes sense if
data may include dates in the future.
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