# Average Between Dates

Dec 6, 2006
I have been trying to create a formula (with little success) to calcuate an average figure between two dates i.e.

Column A Column B

01/12/06 40

02/12/06 39.5

03/12/06 39.9

04/12/06 41

I want the average of 01/12/06 and 04/12/06 (or any 2 dates), I can write a formula to pull in the 40 and 41 and have an average of 40.5 but I need it to calculate the average of all values within the range so the end result is 40.1.

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Jun 9, 2014

If you have some low time resolution data you need to compare with high time resolution data how do you average the high resolution data. For example data that starts and ends a fortnight apart and you want to compare it with data that starts and ends 1 hour apart you need to average the hourly data to do so. I can't figure out how:

So if I had Sheet 1 with hourly data

A B C D E

1 Date, Time, Measurement

2 01/01/2014, 01:00, 62

3 01/01/2014, 02:00, 38

etc....

Then in Sheet 2, fortnightly data

A B C D E

1 Date on, Time On, Date Off, Time Off, Measurement

2 02/01/14, 15:23, 18/01/2014, 12:25, 52

3 18/01/2014, 12:25, 01/02/2014, 14:19, 34

etc....

I'd want to add a new column of data to average the hourly data so I can use the correl function.

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May 5, 2014

I am using the following formula and it is working fine. Is there a better way to do so?

=IFERROR(AVERAGEIFS(INDIRECT("Data!$U"&$B$1&":$U"&$A$1),INDIRECT("Data!$A"&$B$1&":$A"&$A$1),">="&D$4,INDIRECT("Data!$A"&$B$1&":$A"&$A$1),"<="&D$5,INDIRECT("Data!$U"&$B$1&":$U"&$A$1),"<>0"),"-")

I am looking for a better way as I have to replicate the same formula in 100 columns and in 60 rows. Where every row use a different target column (like the above mentioned is using column U.

Indirect function gets the values from A1 and B1 cells (Start and end of column because end value keeps changing with data updates)

AverageIfs get average of a particular value between two dates mentioned on top.

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Mar 16, 2009

I would like to create an average function that will take an average of the Column labeled "Gap Time (Hours/Min/Sec)". I only want it to take the average for this for each new start date. These values will change daily so I was hoping that someone may help me write a function that will work when data changes instead of manually taking the average every time data is entered.

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Jan 24, 2013

I have to columns of data

Date and number

4/1/2012861,808

11/1/2011594,930

11/1/20102,740,320

11/1/20121,041,948

10/1/20111,726,000

10/1/20091,628,000

10/1/20082,059,929

10/1/2011 4,002,000

9/1/20062,979,602

9/1/20073,774,000

9/1/2011NA#

I want to take the average of the numbers between if they fall between dates of 2006 and 2007.

I can not do it with averageifs because I have that NA# in the second column. I dont know what to do.

I have something that works but only if it does not contain NA#, below is the example of what works:

=AVERAGEIFS($D$2:$D$131,$B$2:$B$131,""&H2)

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Mar 4, 2013

70 rows, Col A is a start date, Col B is an end date

What I want in Col B, row 71 is the average elapsed time between start and end dates...

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Jul 20, 2013

Finding an average age from a list of dates. This is just a small sample:

7/9/2013

7/10/2013

7/10/2013

7/10/2013

7/11/2013

7/11/2013

7/14/2013

7/14/2013

7/19/2013

7/19/2013

I tried using =AVERAGE(DAY(A1:A10)) CTRL + SHIFT + ENTER, but that just doesn't seem correct.

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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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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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May 29, 2014

Data example is displayed below. I need to know how to find the average, not date average, but count. What is the average per day? Example on 2/9/2014 there are 12 entries but on 2/10/2014 there is only 1. Example: For all the lines of data that I have, what is average per day?

2/9/2014

2/9/2014

2/9/2014

2/9/2014

2/9/2014

2/9/2014

2/9/2014

2/9/2014

[code].....

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Aug 20, 2008

My spreadsheet is too large to attach so I'll describe it as best I can. I have names in column H, which are repeated irregularly. I have corresponding grade numbers (1-5) in column I, and I have the dates they were entered in column J. It looks something like this:

Column H Column I Column J

Name 1 4 8/10/08

Name 2 3.5 8/11/08

Name 1 5 8/11/08

Name 5 4 8/12/08

Etc....

I want to average the grades (column I) for a certain name (column H) within the last 30 days, or however many days I enter. I'm using Excel 2003 with the analysis add-in. I can use SUMIF to include any two columns, but how can I write an average grade formula using both the name and date conditions? Dan Auto Merged Post Until 24 Hrs Passes;Come to think of it, all I need to do is sum the data. I have a denominator in a different box that I can use to average it. So in effect, I'm trying to creat a SUMIFS function.

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Apr 16, 2014

I am trying to create a rolling 30 day average based on a date in a particular cell. I have 62 columns that I am looking at. We can call A1 7/1/14 and the 62nd column 8/31/14 for simplicity sake. I want to grab 30 values in row 2 as these columns are filled in daily so 8/1/14 takes the average of 7/2/14-8/31. On 8/5, I want 7/6-8/4 so on and so forth. The average that I need has to include at least one averageif stating that only nonzero "<>0" figures should be tabulated (just have business day transaction data but need all dates listed to tabulate 30 days). The range of dates will be fixed every month and info copied to tabulate on the first day.

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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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Mar 5, 2009

Dataset is 220K rows. A small subset follows.

Using an array calc with criterions Day = 1 and Hour = 1 summed on Elapsed Time returns 81 with an average of 11.57 for 7 events of which there are 5 distinct dates.

The function =SUM(IF(D2:D14<>"",1/COUNTIF(D2:D14,D2:D14))) returns the number of distinct dates in the dataset ie 7.

Is it possible to combine these two methods to create an average of elapsed time by day and hour using a denominator of distinct dates for only that combination of dimensions?

I have attempted to calculate an item in a pivot table using a different denominator without success.

day Hour Date Elapsed Time

1 0 5/03/2009 25

1 0 5/03/2009 24

1 1 5/03/2009 23

1 1 7/03/2009 11

1 0 7/03/2009 5

1 1 8/03/2009 2

1 1 8/03/2009 8

1 1 9/03/2009 4

1 1 9/03/2009 17

1 0 9/03/2009 22

1 1 10/03/2009 16

1 2 13/03/2009 12

2 1 14/03/2009 15

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Feb 11, 2014

I have an excel spread sheet with columns of dates I am trying to get an average formula that counts dates less than a year old as 1 and blank cells and dates greater than a year old as 0 and then gives me a percentage. For example I have a column with 10 dates all less than 1 year old I would get 100% but if I had a column with 8 dates less than a year old and 1 dates older than a year, and 1 blank cell, I would get 80%

Is this possible at all, or do I have to calculate the percentage for each column individually.

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Jun 14, 2013

E11 through E24 contains numbers and a few errors (#N/A) that need to persist (the errors need to show).

E10 needs to show the average of the numbers that are in E11 through E24, and just ignore the errors.

I have many columns like that - where the errors need to show and I need to show an average of the number/values that do appear, ignoring the errors.

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Dec 9, 2008

i have two columns...a and b (a w/ names, and b w/grades). then i have the table lookup with names and grades all mixed up for many rows. i want to be able to average the grades with appropriate names.

=average(vlookup(name, table, column, false))?? i don't get it to work and how can i specify the grade to average?

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Jan 23, 2007

TotHCInv.Value = WorksheetFunction. Sum(KRInv, PBLInv, CRInv, PVInv)

If i >= 34 Then CPSCtphRMA.Value = WorksheetFunction.Average("G" & (i - 30) & ":G" & i)

The first line runs properly, but the second line bugs out with the error message "Unable to get the Average property of the WorksheetFunction class". I can simply do the math, but I thought that using the worksheet function would be easier than summing and dividing. I'm curious, though, as to why I can't seem to use the Average function.

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May 23, 2014

Can I get a minimum average and a maximum average, I have a worksheet with days of supply for 100 stores with about 100-200 products each, the dos resides in column D.

I was going to create a summary page and reference column d.

The following just gives me the min, I want the min average if possible:

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Sep 1, 2006

I am attempting to calculate Grade point averages for my students for all classes. There are 5 columns of grades to be considered. I frist assign values of 0-5 to the grades then average the points. My problem is that I want the AVERAGE to ignore the zero but it calculates it as well. (I enter a 0 if I have no grade for that class.) I have tried the{ } to make it an array formula but this also did not work. Here is what I have, can anyone help?

=SUM(AVERAGE(IF(AND(L2>89,L2<100),5,IF(AND(L2<90,L2>79),4,IF(AND(L2>69,L2<80),3,IF(AND(L2<70,L2>59), 2,IF(AND(L2>0,L2<60),1,0))))),IF(AND(T2>89,T2<100),5,IF(AND(T2<90,T2>79),4,IF(AND(T2>69,T2<80),3,IF( AND(T2<70,T2>59),2,IF(AND(T2>0,T2<60),1,0))))),IF(AND(AB2>89,AB2<100),5,IF(AND(AB2<90,AB2>79),4,IF(A ND(AB2>69,AB2<80),3,IF(AND(AB2<70,AB2>59),2,IF(AND(AB2>0,AB2<60),1,0))))),IF(AND(AJ2>89,AJ2<100),5,I F(AND(AJ2<90,AJ2>79),4,IF(AND(AJ2>69,AJ2<80),3,IF(AND(AJ2<70,AJ2>59),2,IF(AND(AJ2>0,AJ2<60),1,0))))) ,IF(AND(AR2>89,AR2<100),5,IF(AND(AR2<90,AR2>79),4,IF(AND(AR2>69,AR2<80),3,IF(AND(AR2<70,AR2>59),2,IF (AND(AR2>0,AR2<60),1,0)))))),-1)

I know it is huge. The syntax is correct. It calculates the average, but always for all 5 columns. It will not ignore a 0 in a column.

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Jan 7, 2008

I'm using the formula =AVERAGE(B16:L16) to give me the average.

However I have a couple of problems with this. Firstly I would like to exclude the value zero from the average. Secondly to also ignore the lowest and highest values.

Example, if the values in the cells are 0,1,2,3,4,5,6,7,8,9,10 then the current result shows 5, by ignoring the 0 and lowest value 1 and highest value 10 the average should be 4.5.

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Oct 11, 2006

Ok, I for some reason just cant wrap my head around this. I need to to get the average time per call of two rows, but they are based on how many calls taken.

so in one column i have 50168 calls taken at 4:21 seconds per call. and in the next row i have 597 calls taken at 5:20 per call. I need to see what the new average will be with them combined, and I need it to display in m:ss form.

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Apr 30, 2013

I have a pivot table and and struggling to group these by month as well as to sort thee in escending order.

Pivot Table Â ABC3Row LabelsSum of DebitSum of Credit

413/02/201334367.1822844.19513/03/201326475.492219.66613/08/201230307.613541.2713/09/2012

18898.0318065.4813/10/2012Â 7210.52913/11/201241969.041767.821013/12/201232844.7724041.26

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Jun 17, 2007

I have a sheet with a date and the number of months on it which will change. I need the sheet to list the dates in a column for each month automatically: e.g. Two cells contain date “jan07” and the period “10” months. The rows A1 to A10 should have jan07…jan16 listed automatically. If I change then change the number of month to 11 I would like the rows A1 to A11 to update automatically.

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Nov 8, 2012

I'm trying to make a simple chart, which maps the value of an investment fund over time. I wanted to use the new 'Table' feature within Excel 2010 to format and maintain the formulae within the Table, and the 'Header' for the table contains the date, which is not at regular intervals.

If I opt not to use the Table feature, I can create a line-chart with ease, and Excel recognises that the Dates are indeed dates and plots the graph correctly. The minute I convert over to a Table, the Date headers are no longer recognised as dates, and are instead plotted as if they were text, at regular intervals.

I've tried multiplying the Date Headers by 1 to force them back to true Dates, but this still does not work. I've also changed the setting on the horizontal axis to Date axis rather than automatic, but still no joy.

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May 3, 2009

look at the attached file - it was a CSV file. i want to convert the column of dates to say Mar 14 2009 type date. but it only converts some of them.

note some are on the left and some on the right.

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Oct 21, 2011

I am in strange situation where I have a data with Invoice Dates. These dates are in Text. However, when I convert it into reall excel dates. For some reason the dates do not come right. convert my text dates into excel real dates. I did a lot of google search and apply these three methods but all of these gave me strange result I was not expecting. These are the methods I used and the result of each method.

Method 1 : Using Text to Column Wizard (Excel 2007)

I highlighted invoice column and went into text to column wizard. I clikced on Date button, and selected MDY format. Strangely enough, my result was day, month and year i.e. DMY which does not seem right.

Then I press Control ~ on this data as shown in second view.

Inv DateMDY09/22/1122/09/201108/31/1131/08/201108/31/1131/08/201108/31/1131/08/201108/31/1131/08/2011

control ~ (overview)

Inv DateMDY09/22/114080808/31/114078608/31/114078608/31/114078608/31/1140786

2nd Method - Using formula to convert text date to real dates When I used formula, I get the following result. As you can see, formula is converting text dates into different system dates than the first method.Further strange things is when I take these system dates i.e. 4283 and in 2007 excel format use "Short Date" the same system date gets converted into wrong year as shown in the second view.

Inv DateFormulaFormula Result09/22/11=DATE(MID(B2,7,2),MID(B2,1,2),MID(B2,4,2))428308/31/11=DATE(MID(B3,7,2),MID(B3,1,2),MID(B3,4,2))426108/31/11=DATE(MID(B4,7,2),MID(B4,1,2),MID(B4,4,2))426108/31/11=DATE(MID(B5,7,2),MID(B5,1,2),MID(B5,4,2))426108/31/11=DATE(MID(B6,7,2),MID(B6,1,2),MID(B6,4,2))426108/31/11=DATE(MID(B7,7,2),MID(B7,1,2),MID(B7,4,2))4261

2nd view - system dates are getting converted into 1911

Inv DateFormulaFormula Result09/22/11428322/09/191108/31/11426131/08/191108/31/11426131/08/191108/31/11426131/08/191108/31/11426131/08/191108/31/11426131/08/1911

Similarly, I tried other methods or copying blanks etch but none seems to convert text dates into real (system dates).

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Feb 23, 2014

Here is my set up:

A2 to BF2 is a range of dates

A3 to BF3 are sales. Days without sales are 0.00

I want to pick a range of dates and find the number of days without sales between those dates. So, a formula that will look to a start date in A1 and an end date in B2, and then count the number of days that did not have sales between. Index/Match/Countif/Dateif I can't seem to make anything work.

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May 14, 2009

Hi Guys, This has been bugging me for a bit now and I just can't sus it...

I have a sample perpetual calender that I have been modifying to fit my own purpose. The calender part works fine.

I have beside that a column for holidays, etc and then a another column for other events.

When I put the date in the holiday or events columns I would like the date to be highlighted in the calender above (different colour depending on which column it came from).

The formula I have been playing with (no success) is:

=MATCH(DATE($R$2,1,C8),$I$41:$I$65,0) - This is the Formula for the 1st column of dates.

The 2nd formula is similar, just changes the column it tries to draw the MATCH(DATE.... from...

Although this formula works fine on the sample spreadsheet. When I enter the formula on my sheet, it doesn't seem to work...

I have attached the spread sheet that I am working on.

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Apr 4, 2008

there are a multitude of issues with US date formats when you're not in the US but I've run across one that I can't figure out.

I have a source table that has approx 5000 lines on it, everything looks correct and all the dates are in the correct (Australian) format. However when I use it to make a pivot table, any dates that are before the 12/m/yyyy gets changed to the mmddyyyy format in the pivot table only, all the source dates are still correct.

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