# Formula To Calculate How Many Days In A Month And Create Column For Each Day

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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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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Apr 3, 2014

I have a form in which users will manually enter a date in Column A. I would like to create a formula in Column B which will add 4 days to the date based upon Column A. However, the 4 days should only be added to a select set of dates which I would like to specify. If the date is not found in this select set of dates, then the result in Column B should be the same date as Column A.

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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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Apr 17, 2013

I am having trouble creating a formula to capture the "first of the month after 60 days" from the Hire Date.

Example, Hire Date is 01/15/2013, should return 04/01/2013. Would the ROUNDUP function be useful here?

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Mar 17, 2014

I have a list of months in column A and would like a formula in column B that calculates the number of calendar days for each month (i.e. Jan=31, Feb=28 etc.)

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Aug 19, 2007

Is there a formula to calculate the working days left in the current month? I work in the financial services industry and am putting together a spreadsheet to automatically calculate sales production needs per "working day", based on my businesses schedule.

We are open M-F and Saturday, not including holidays. Now, I can look at a calendar, count the days left and put them in to the spreadsheet, but I'd prefer to have it calculate automatically.

On my spreadsheet, I have used the =TODAY() formula. In the cell below, I would like to have it calculate the actual working days remaining in the current month.

Since today is Sunday August 19th, I know that there are 11 working days left (starting Monday 08-20-2007). Is there a way to get Excel to do that?

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Dec 31, 2013

In one column I'll have a list incrementing in 1w,2w,3w,1month and I want to be able to count the number of days that have elapsed till the latest cell. Right now I'm just winging it by saying there's always 31 days in one month using a COUNTA function, but I need it to be accurate.

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Jan 28, 2010

I have a spreadsheet that is now a yeare old with 5000 rows and is now going into the 2nd year

Column A is for date input and the same date can be repeated several tumes :-

1 Jan 09

1 Jan 09

1 Jan 09

1 Jan 09

2 Jan 09

2 Jan 09

3 Jan 09

3 Jan 09

3 Jan 09

Sometimes there are all 30 /31 days but normally not .

I need to find the last ocurance of the last date used for each month and then use the cell number to calculate the column totals for that month.

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Mar 20, 2008

I need to do the following and can't figure it out. How do I create a running average that will only calculate the averages in % each month. Example: Opt 1 for Jan, Feb, Mar =1 each= 3 total = 100%; OPt 2 for Jan, Feb, Mar =1,0,1= 2 = 66%; Opt 3 for Jan, Feb, Mar = 0, 0, 1 = 1 total = 33%. My problems is I want monthly running average that shows the yearly percentage up to date but only for the months there is a value 1 or 0. How can this be done because the way I have it now, those % are being divided by 12 and that isn't the correct %

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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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Apr 2, 2009

I have two columns of dates, leave start and end dates (when people start leave i.e. annual leave). Would need to introduce column(s) to calculate how many days fell within the month including the end date and excludes weekends.

For example, if the staff on leave from 31st March to 6 April, i need to show that the number of leave taken as 1 day in March and 4 days in April.

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Apr 22, 2014

I am currently using the following formula which has been working great for what we needed it to do:

=IF(ISERROR(NETWORKDAYS(O34,Q34,Holidays!C$2:C$20)-1),"Not Completed",NETWORKDAYS(O34,Q34,Holidays!C$2:C$20)-1)

The formula determine what was been completed on the previous work day. If it fell on a weekend or a holiday specified in another table, it would consider it the following weekday's work. However, the needs of management have changed and they would now like to see anything completed on a weekend or holiday push back to the previous weekday and I'm not exactly sure how to modify this formula to do that.

As an example, work was completed over Good Friday. Yesterday (Monday) when we ran the report, none of those showed up in our list of completed items until today (Tuesday). They would have liked those numbers to be included on Monday's report to get an accurate picture of work that was completed.

I have attached some sample data. Everything completed on the 18th, 19th is counted as 1 day behind but we would like 18th and 19th to be shown as 2 days behind, just like April 17. That way, if we ran the report today and set the filter to 1 (for column C), those items would not show up, but they would have shown up on yesterday's report.

Sample.xlsx

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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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Jan 8, 2009

I am trying to put a time sheet together that will place the number 8 in a cell when the work "sick" or vacation is in another cell.

For example, if I am out sick on monday, I would like to put "sick" in the cell next to monday and have the number 8 be placed in another place. Then If I am out "sick for three days I would like all of those "sick" days to add up to 24.

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Dec 16, 2009

I am trying to use the following formula to count the number of times a day appears in a column. It doesn't seem to be working the way I want it to. =COUNTIF($A13:$A200,"Sunday"). It could be the way the days of the week are gathered on the sheet, you can see the attached workbook to see how I am using it.

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Sep 13, 2009

I am using the following formula to calculate years months and days in Excell 2007

=DATEDIF(C7,D7,"y") & " yrs, " & DATEDIF(C7,D7,"ym") & " mths, " & DATEDIF(C7,D7,"md") & " days"

C7 3/24/04

D7 1/4/08

What is returned is 3 years, 9 months, 136 days

How might if fix it show the correct days?

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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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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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Apr 1, 2009

A1, B1, C1 and D4 are cell in Excel worksheet and values are 2, 4 and 6 in A1, b1 and c1 respectively.

A1 B1 C1 D4

2 4 6 C1-Formula is: =sum(A1+B1)

Now I have to write formula for D4-cell:

i.e. =sum(C1/Total days remaining of the month)

Suppose Today is April 01, 2009, C1/should be devided by 30,

Tomorrow will be April 02, 2009, C1/should be devided by 29.

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Oct 16, 2009

I am trying to calculate the number of days since an employee worked. Column A has the date and columns B,C, and D show the name of the 3 employees who worked that day. Each row shows the next day in column A with the three employees who worked that day in columns B,C, and D. I need the format of the excel sheet to remain the same. I'm looking for a formula that will calculate the number of days since each employee has worked...there are 10 different employees and only 3 work each day.

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Jan 16, 2013

I have a spreadsheet with a column showing dates (dd/mm/yyyy). I need the column next to it to display the month only (Jan,Feb etc).

How do I create a column to show the month only using the date column as a reference.

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Sep 15, 2009

I am creating a tracking spreadsheet and I will need to f/u on a process 30/60/90 days out from a particular date. Example: CPAP Therapy began 1/22/09 and I need to follow-up by 2/22/09. How do I create formula to add 30/60 or 90 days out from the setup date?

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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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Jun 19, 2014

So yesterday I created a thread [URL] ..... that would clear a specific content if a date (or rather a day) matched the criteria.

Today I'm continuing with that document and need to sum the columns if the date in a row is the correct month and year.

Ex. Row 1 contains the date "yyyy-mm-dd" and row 2-5 contains empty cells or the value x. The x values are all random placed.

So, I want to sum all the "x" for February 2014.

I'd rather use a formula here than a macro/VBA-code but anything will do. I have tried myself with =sumifs and =sumproduct but with no success.

See attached file for example and for my =sumproduct formula.

Excelforumexample1.xlsx

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Dec 19, 2012

I have a large data sheet with dates in column B - in column A, I'm trying to write a formula that will determine what fiscal month it should be mapped to.

I have the calendar listed on a different tab.

Fiscal Month

Start Date

End Date

January

1/1/2012

1/31/2012

[Code] .........

The formula I tried using is: =LOOKUP(B2,Calendar!$B$2:$C$25)

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Feb 22, 2008

I have a worksheet where the current months date is entered in cell E1 (format dd/mm/yyyy) , using an input box.

I need a formula the will calculate the previous months month end date in cell A6 and the month end prior to the date calculated in A6 in cell A13.

where the dates start with 31 for eg 31/01/2008 , then my formula works, but if it starts with 30, 29 or 28, then obviously it does not work.

I would like a formula that will calculate these previous month end dates correctly.

See example below ....

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May 15, 2009

I have a column say column B for example that has a list of dates in the format dd/mm/yyyy. I would like a summary at the top of the columns to state how many dates there are for the current month. But I wondered if this was possible based on the TODAY() function or similar. Thus the user would not have to change anything.

So for example at the start of the month it may state 14. Half way through the month down to 6 and at the end of the month 0 for example.

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