# Formula To Return Average Days Between Two Dates In A Given Month?

Jan 13, 2014
I have a workbook with two sheets. The first has a list of job positions open, columns designated to stages in the employment process and in these columns, my staff enter the dates that they completed a particular stage.

"Position | Date Opened | Stage 1 | Stage 2 | Stage 3 | Stage 4"

Pos 1 | 01/01/2014 |02/01/14|03/01/14|07/01/14|09/01/14

This has a great number of entries and they are increasing and decreasing every day depening on the amount of jobs available.

On the second sheet, I am trying to set up a table which shows the average working days it is taking to complete each stage, divided into the months in which the job position was opened (i.e. for positions opened in january, the average completion working days for stage 1 was X amount of days etc...)

I have tried using =IF(AND(Logical, Logical),TRUE,FALSE) but this doesn't return any info as the logicals will always be false. I tried the OR function, but that requires only one of the criteria to be true to return a value. What I need is for the formula to return a number of days between two dates, ONLY if the opened date falls in one month.

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Feb 13, 2013

I wanted to determine the number of days between two dates. Specifically, if the initial date is in one month, and the second is in a different month and an output would result a number of days in each month until the final date. BUT I have a large amount of data to do this for in a list view, way to put a formula in excel and just drag down the entire list to get the required information. see below for an example.

The result I'm looking for is the separate the months and only show the relevant months between the two dates in one cell or the adjacent. Something similar to the table outlined below.

Input Data

Result

Start Date

[Code]....

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Oct 23, 2013

My sheet looks like this - example:

ID Dates CombinedAverageDaysFromID

0001 2012-02-01 ?

0001 2013-08-10

0001 2013-10-10

0402 2011-01-02 ?

0402 2013-01-05

0402 2013-01-22

0003 2009-02-04 ?

0003 2009-12-04

0003 2010-01-04

0003 2010-03-03

0003 2010-08-02

0003 2012-04-04

0003 2013-01-05

0003 2013-10-03

I need to calculate the average days between the dates for each ID? How do I do this?

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Jan 15, 2009

Today I am having a very annoying problem that really has me stumped – I need to work out the lag between a Due Date and Delivered Date

But as people sometimes manage to deliver on the Due Date it needs to show a zero (as in they got it in on time) but using the formula below the result is a 1 and I want a zero

Can anyone help me please? I have tried putting assorted -1s in to the formula and it looks like it might work until I copy down and find that if a person delivered one day early the result shows -3 for example!

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May 6, 2014

I'm working on building a workbook to track sales progress, and I'd like to perform an analysis on some of the data with regards to sales efficiency.

To simplify:

Column A = Initial Contact Date (mm/dd/yyyy)

Column B = Close Date (mm/dd/yyyy)

As an example, I would like to calculate the average number of days between the Initial Contact Date and the Close Date to calculate the average number of days in the prospecting cycle. Basically, the formula should function as AVERAGE((B1-A1)+(B2-A2)+(B3-A3)...) and so on for the entire column.

I know one solution would be to insert a new column that performs the subtraction between the two dates, and then I could AVERAGE this new column. However, I want to perform similar calculations to analyze the time period between other key milestones in the prospecting cycle - rather than have a lot of extra columns in my sheet, I was wondering if there's some type of array formula that will calculate what I need.

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Oct 4, 2006

Is there a formula or code that returns the dates in the month in the current month before today? For example, today is 4th october 2006. so I would like it to return a column of values that include 1/10/2006, 2/10/2006, 3/10/2006, 4/10/2006.

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May 7, 2014

I have some data & want to count the individual number of days for each month.

Example attached..

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Jan 27, 2009

Is there any simple formula to get no. of days in a month?

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Apr 25, 2012

I'm have problems workdays in a month. I have highlighted errors in red.

Sheet1

ABCDEF1JoinedPosition EndJan-12Feb-12Mar-12Apr-12213/06/1101/01/1222212221331/01/1122/03/1322212221419 ...

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Jun 16, 2008

I have checked searching the forums for this but nothing that really matches what I am looking for. I am trying to, from a date, deduce how many days there are in that month. I have tried a solution where I look at EOMONTH adding and subtracting but this is quite cumbersome. Is there some code out there where someone has solved this?

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May 7, 2014

In cell A1 = 15/06/2006 (dd/mm/yyyy)

What is the formula to find how many no. of days in month provided in cell A1.

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Jan 20, 2010

I want to use a COUNTIF to return the sum of all the dates that fall within a given month/year. For example: E1 Contains the date July-2009

Column A has date entries such as July 3, 2009, July 18, 2009, August 4 2009. In F1 I want to return the sum of all dates that fall within the month of E1.

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May 18, 2012

Formula which can calculate how many days in a month and create a column for each day. Columns for day 28, 29, 30 or 31 also need the formulas in columns 1 to 27 copied over automatically. [sheet name "LARSheet1 to 1" ]

I'm trying to build "Leave, Attendance Management" system using Excel. I am about 40% there so far.

The basic structure of the workbook is as follows:

12x main monthly "Leave Attendance Record" worksheets (i.emonths April 2012 through to March 2013). [I will refer to these sheets asLARSheet1 to LARSheet12 ].

1 x worksheet which holds "data validation" list andvlook up info. ["FormulaListSheet"]

1 x worksheet acting as a database of staff details andpay numbers. ["StaffdBaseSheet"]

1 x summary page which shows staff reaming leaveallocation. ["SummaryLeaveSheet"]

What I'm having problems with at the moment is as follows:

A formula or a macro which works out how many days are present in a given month [starting date of month located in CELL B10].

Days 1-27 will be already set up on the sheet. Based upon the monthly value I would like a solution which can calculate how many days are in a month and create a column for days 28, 29, 30 or 31 (depending on the month).

I would like it to work like this:

When the user opens a new worksheet, they first entre the month start date in CELL B10. Hopefully this will trigger columns E13:AH22 to update with the relevant week day & date.

I also need the formulas and formatting in cells AH13:AH100 (column for day 27) to copied over automatically.

Sample of sheet setup : screenshot_LARSheet1.PNG

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Apr 8, 2009

I have a formula in column E: =NOW() for the date.

I need a Formula in Column H from H11:H300 such that:

i) when a date is entered in G11 the number in Cell H11 should be a difference between G11 and D11 as in rows 11, 13, &14 and

ii) Until a date is entered in cell G11 the difference should be between E11 and D11 as in ROW 12

Below is an example of what I want.

D E F G H8 Date Days9DateStatus as of Expected ActualTOTAL10out of order8-Aprin orderin order114-Mar8-Apr14-Mar101210-Mar8-Apr29134-Mar8-Apr6-Apr33141-Mar8-Apr31-Mar30

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Mar 16, 2010

See Attached.

The YTD 10 column is fine that will change everytime you update each month. I was wondering if there was a formula I could use for the Rolling 12 month Column.

At the moment it is averging from Mar 09-Feb10 which is correct but when it comes to putting in data for Mar 10, the Rolling 12 month column will obviously not change.

Is there a way of moving the formula along one each time you input data into a new month. So when Mar 10 has been entered the rolling 12 month column will pick up Apr-09-Mar-10 then when Apr 10 has been entered the formula will change again to May-09-APr-10?

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Jan 23, 2012

I have a large spreadsheet which holds lots of data with date ranges that i need to performs different actions to. Any way to identify the number of days, per calender month, that falls in a date range.

sample data...

Start Date

End Date

Old Value

New Value

08/03/2010

18/06/2010

16758.2

16758.1

[Code] .......

I need to break down the total number of days per month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

24

30

31

18

[Code] ......

As you can see this also laps into a new year, which poses my next problem, ill probably just add more columns on to the end of the table for that though...

I will later apply different calculations to these cells but in short need to get a calculation for the number of days per month first.

(in short spreading the new value out accross the year then multiplying it by the days... i also need to apply a further daily volume cal to it).

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Jul 31, 2009

I'm needing a formula that will determine the number of days that fall in a specific month based on a date range. For example, if I have a date range of 10/15/2009 to 01/13/2009, I need the formula to determine the number of days in each month within the range (October has 15 days in the date range; November has 30, December has 31, and January has 13.) I have a large spreadsheet that would be so much easier to manage with such a formula. Currently, my spreadsheet is setup as follows. I need the forumla automatically fill in the number of days under each month.

Stard Date End Date Oct-09 Nov-09 Jan-10 Feb-10

10/15/2009 01/13/2009

I'm using Excel 2007.

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Mar 19, 2014

I have two date columns, a start date and end date. Another columns tells me the number of days between these two columns. It may return 45 days which actually straddle 3 different months.

My aim is to identify between this date range how many days in Apr 14. Then in the next column howmany days in May 14 etc

So on the spreadsheet Id have 12 columns for each month of the year. in Apr 14 for each row between the given date range I want it to tell me how many days are actually in April. Id then copy that formula into the May 14 column.

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Aug 4, 2008

I have been using a formula to count the number of days between 2 dates and if the date was older than 12 months it would work fine.

The data that i was using has been changed and they have decided to change the format of the dates and dropped the year reference no all i have to work with is dates like 27-07 this represents 27th July i can format this date to work fine unless the date falls before 1 jan this year all i get is lots of numbers and it stuffs up the whole calculation.

The formula i am using to compare the dates is

=DATEDIF(N31,$D$1,"d")

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Aug 6, 2012

I want to create a formula that works out the number of days between two dates but excludes weekends?

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Jul 22, 2014

I have the following formula which counts number of days between dates in two adjacent cells excluding holidays

=NETWORKDAYS(U311,V311,$AA$4:$AA$14)-1

The $AA$4:$AA$14 refers tote range where the excluded holiday dates are stored.

I have included the -1 at the end as it over counts by one day every time. i.e. if the same date is in both cells it counts 1

However if no date is in both fields it count -1 (minus one)

If a date is just in one field it counts a very high number, example below.

-1

16/07/2014

-29879

20/06/2014

08/07/2014

12

[code].....

is there a better formula to use for this? How do I get the result to show ZERO when both cells are empty? can I get the result to show number of days to present date where there is only a date in first column?

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Jul 5, 2007

I'm trying to calculate the number of days between dates in column A and B. I've looked at the examples in this site and thought I used the formula correctly, but the cell returns an error message when I type: =DATEDIF(A1,B1,"D")

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Jul 31, 2013

I am trying to auto generate a calendar based on two drop down menus - Month and Year.

Once the month and year is selected I want to import all work orders onto the calendar based first on the "Labor Name" found in the list of work tab, then assign each work order for that labor name to the respective date on the calendar for the month.

August PM Schedule Demo.xlsx

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Oct 14, 2009

Im trying to figure out the formula to comput hours:minutes between time on different dates a couple of days apart.

B12 = Date

B15 = Time (on date in B12)

Previous date and time are in AA9. I have been trying to us =SUM(B12+B15)-(AA9).

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May 1, 2006

I would like to create a monthly inventory, based on workdays (Monday - Friday)Myrna Larson has a formula that I would like to use with the workday function, but I don't know how to combine them.

=IF(A1="",A1,IF(MONTH(A1+1)=MONTH(A1),A1+1,""))+ = workday

to fit on the page, I need the dates to be from the 1st to the 15th, and 16th to the 31st. I am not sure how to write this either.

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Mar 11, 2008

I am working on formula to return an average of data.

Currently it is matching a text criteria.

Thus if (the text in) column a = (the text in) column b, (return the average of) column c.

The formula that I am using is =IF(A:A,B:B,AVERAGE(P:P))

This is returning - #value!

Now is this a formatting problem in column P? Or is the formula I am using incorrect?

I know that the text criteria (col A & B) matches.

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Nov 6, 2005

I'm trying to write a formula to return the AVERAGE by calendar quarter, IF

the quarter has ended.

For instance, IF Jan = 5, Feb = 20, Mar 5, Average would be 10.

But, if Mar was 0 (only meaning no activity) I still need it to calculate.

The formula I started with is -

=IF(A1=0,0,AVERAGE(A1:A3)

This works only if cells A1:A3 have a value greater than 0. How can I write

the formula so that as long as A3 is not blank that it will return the

AVERAGE?

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Feb 22, 2014

get the current month name in a Cell A1 and Next month name in Cell B1. what formula should I used? This will be a part of the macro that I'm creating.

The macro will be use every 11th to the last day of the month so I want the formula to be dynamic enough to work in each day the macro will be use.

Expected result using the current Date Today

A1 B1

February March

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May 12, 2009

I have a variable list of items in date order, there could be one, more than one, or, no items for any one date Each item has it's own line. I need a formula in a separate column (column F) to total each day's items. Column A includes the Date. Column F is a cumulative total (as in Column C) for items on the same date. Column C=D+E. I am looking for a formula which will add up items in column C if they have the same date in column A, and put the answer in the last cell in column F for that date. Example........................

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Oct 2, 2005

function in a spreadsheet that will list all of the days in

a given month automaticaly with the entry of the 1st of the month only.

Ex;

10/01/05 entered dated

10/02/05 auto fill

10/03/05 "

. "

. "

10/31/05 end of auto fill

I would like the function to stop filling dates at end of the month even for shorted months such as Feb.

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