Calculate Date Difference In Weeks

Sep 21, 2007

On some Military computers the Add-ins were not installed, therefore the WEEKNUM function cannot be used.

The task is to calculate the time interval (in whole weeks) between two dates.
(Every start date is to be calculated as a whole week – same for the End date).

I tried but the most but came up with the incorrect formula in the attached workbook.

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Calculate End Date From Start Date & Number Of Weeks

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Take a look at the attachment file. Those highlighted in yellow are entered by the user. What is the formula to calculate the End date in (A6) after the user has entered the start date (A2) & the number of weeks (A4)?

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Sep 22, 2007

i am trying to create a forumla in a column (D in my expamle below) to count the number of days between two dates. Knowing that col D will change everytime the @now date changes - but thats ok..

COL A COL B COL D
ROW 1 Open Date Closed Date Count of days open
ROW 2 4/1/07 BLANK CELL Formula result here
ROW 3 4/1/07 9/5/07 Formula result here

if col b has a date then subrtract col a from b and display the # result, if col b is blank then subtract col a from location I store the @ now date - say Col ZZ Row 99? so no matter there is a count of number of days in every row in column D

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I request a help:

A1 = 01-Apr-2009
B1 = 02-Apr-2009
C1 = 03-Apr-2009
D1 = Blank
E1 = 05-Apr-2009
F1 = 06-Apr-2009

What is the best suitable formula to find "First blank cell", then "date difference" between today and its previous cell's (i.e today minus "C1" in this case).

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I need to calculate the date difference between two dates and get the result in the number of years and proportion of months ie;

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I'm trying to make a formula to calculate the difference in a date between two dates. For exaple, in my business we have a due day for something. So the due date could be Feb 10, we need to know if it was done on time, late, or early. So I've gotten it to display late by doing this: =IF(B2>A2, "Late", (A2-B2)) But then I can't figure out how to incorporate this: =IF(B2=A2, "On Time") or =IF(B2<A2, "Early").

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Green line is sales, yellow balance stock

EX1.JPG

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Jan 13, 2014

find the formula to calculate how many weeks between two dates for example. I how many weeks between

December 23, 2013
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January 6, 2014
January 19, 2014 =2w

January 20, 2014
February 2, 2014

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Jun 10, 2008

Calculate the weeks cover of current inventory based on a sales forecast. the forecast is in weekly buckets so I was thinking using some form of loop statement within the function which basically starts with the inventory figure then subtracts the forecast week by week until the inventory figure is less than the weekly forecast. I should then be able to divide the inventory by forecast and add back the number of loops to give me the weeks stock figure.

I have done this using if statements but it will only allow me to use 10 statements in the function and I need to do this for a full years worth of forecast.

Does anyone have a suggestion as This problem is becoming quite frustrating.

Here's an example of how the spreadsheet looks

Forecast103050205040Inventory 20019016011090400Weeks Cover6.05.04.03.02.01.0

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I am looking for a simple formula that would look at column A2-A100 and calculate the whole number for the number of the week I am on. So in cell K22, I would like it to add up the A column and spit out a number 4, then on Monday when I add a new record I would like it to automatically update to a 5; indicating the 5th week I have been tracking the data. This number is needed to calculate the average amount in a work week accurately and automatically in cells K20 & K21. New weeks start on Monday and end on Friday. No data will ever have a date of a Saturday or Sunday. I have colored the cells currently to indicate what the number should be. There is 4 alternating colors now. The color coding is just for reference and will not be used going forward. Data will be entered weekly indefinately.

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[Code] ......

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I'm trying to automate the attached schedule so that the formulas in H stop increasing once the amount in column J equals zero. So far everything I've tried either gives me a circular reference error or ends up giving me the same result as if I depreciated the asset an additional month.

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I am storing nutrition data from a certain date the user chooses and it is a 12 week program from the start date. I want to retrieve info from those 12 weeks but do not want them to be able to select data outside the 12 weeks.

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Here is what I have:

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B1 = 6/5/08 0402Z

For this example, the formula should return a result of 13 hours and 58 minutes. With the result, there is no need to desingate Zulu time with a 'Z'. But I need the result in a format that will allow me to calculate an average for all my data.

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I'm looking for a macro or formula that can calculate the difference to the lowest of col C based on option in colB. See attached. I complete what it should look like in F. Basically, this can be done by sorting the data by colB and using this formual for every group. =C2-MIN($C$2:$C$4). This is not ideal because I have many of these to do and you have to adjust the min range for every group. Plus group sizes will vary.

There has to be a better way. Ideally, I would not like to have to sort the data, unless a macro did it for me....

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I have 2 columsn with data that looks like this:

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Sep 11, 2008

This is more of a query on date dif

I was trying to calculate the difference between two dates on excel

I had a look through the search message board and searched the web generally where I came across the datedif function

I had found that in order to get the number of years it was

=datedif(startdate,enddate,"Y")

for months same formula"YM" and for days use "MD" in place of "Y" in the original formula

My question is when using datedif to calculate the number of days between two days it initialy gave me the right answer

Number of days between 01/08/2008 - 22/08/2008 - Answer 21 days

Using date dif gave me 21 days but when i did

01/08/2008 - 01/09/2008 - this gave me 0

Am I entering the formula wrong or does datedif simply not pick the difference if the days havent changed even though the month has ?

I then found i could simply minus one from the other , which then had me asking what is the point of date dif

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I've been racking my brain on this one for awhile, and I feel like I'm going the right direction but...

I have a list of dates like:
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10/31/2007
9/30/2007
8/31/2007
7/31/2007
6/30/2007
5/31/2007

or maybe

11/30/2007
11/23/2007
11/16/2007
11/9/2007
11/2/2007
10/26/2007
10/19/2007
10/12/2007
10/5/2007
9/28/2007
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9/14/2007
9/7/2007
8/28/2007

...and I need to determine if the difference between them is daily, weekly, or monthly. There are 79 of these lists, on 79 different sheets so I can't visually peg them as daily, weekly, or monthly.

The way I have been looking at the problem is to calculate the number of months between the last & first dates and see if the resulting answer (+1) matches the number of actual dates, and so on...

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Example.xlsx

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Data as of Date
Item
Value

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So far I'm either getting a 0 or a FALSE.

Column A = Date 1 Column B = Date 2 Column C = Formula

=IF(NOT(ISBLANK(B2)), B2-A2, )

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I want to be able to find the average reduction amount when the accepted value is less than the appraised value and is not rejected.

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