I have the results of a survey with birthdays in various date formattings.
01.01.1990
02/03
04.05 etc.
Every time Excel sees a day and a month without a year it implies the current year and puts it in the cell without any hesitation. So, when we try to extract a year, we get not the error we expected but the current year, which is nonsense.
How can we avoid this behaviour?
The desireable result is:
One column with one formula
If the year is written, we extract it using =YEAR()
If it is absent, we just do anything else, for instanse put "".
Basic change of formatting doesn't change the implication of the current year. And if we change the format of the whole column from date to text, we cannot use the formula "YEAR" anymore to any of the cells.
This is a task for students who can deal with Excel and Google Sheets only, Python is not an option.
I would be very grateful for any help!
Both Excel and Google Sheets stores date as a number (day count) starting from 1900/01/01 so it either assumes year for you or doesn't recognize it as date at all.
If you convert date to number, 1900/01/01 will be 1, 2023/01/16 will be 44942 (as it is 44942 day counting from 1900/01/01).
I assume that survey can't be filled by people born this year so just "filter" them out:
If date is in A1 use formula:
=IF(OR(YEAR(A1)=2023,YEAR(A1)=1900),"",YEAR(A1))
This will print nothing if captured year is 2023 or 1900 (this behavior also possible when dealing with dates without years).
Related
I am trying to get the number of days per year between two dates.
The results should look somehow like the following picture
The range between the 2 dates in the 2021 year has 301 days and in the 2022 year has 94 days.
Put this in C2 and copy over:
=MIN(DATE(C1,12,31),$B$2)-MAX(DATE(C1,1,1),$A$2)
Your question isn't entirely easy to understand but what you don't know is in plain sight: Excel represents dates as integer numbers where Jan 1, 1900 is the first day (= 1) and all days from then till now have a unique number. Today is 44261. Tomorrow will be 44262.
Therefore the difference between dates equals [End date] - [Start date], where only one of these two dates is included in the count. [Tomorrow]-[Today] = 1, not 2.
When a worksheet cell is formatted as General Excel will automatically change that format to whatever Excel thinks you have probably entered. If you enter what Excel recognizes as a date the cell format will be changed to Date and if the way you entered the date was by function, such as =TODAY() the cell will display "6/3/2021" using the date format specified in your Windows International settings.
But if you manually change the cell format back to General or Number the display will change to 44262. That's the way you can test if your cell contains a "true" date, with which you can do calculations, or a "fake" date, which is just a text string which is nice to look at but otherwise useless.
I have a Excel Master sheet where I am looking to query other sheets within the workbook. What I am trying to do is see How many occurrences of an ID for a Project in a column occur within a month, e.g. how many times does the ID 1367 occur in November. My dates are in the format of e.g 13/11/18 and this cannot be changed as I am just creating a report against a workbook I do not own.
The relevant columns I need are formatted like so:
Project: Project ID: Date:
a 123 1/01/2018
a 123 2/01/2019
a 123 3/01/2018
a 123
This is my SUMIFS function:
=SUMIF(PPlanner!$D:$D,Dashboard!$B$6,PPlanner!X:X)
This works by itself. My problem is trying to get the ID total for a specific month.
It returns the number of occurrences the ID occurs against a project all together but not against the month specifically. I have tried adding syntax to specify
the month but I am getting errors such as "too many arguments".
I recently answered a question that was very similar :
Excel - Take Average of Monthly Data
I think this would answer your question as well, but you have to use COUNTIFS instead of AVERAGEIFS
As for presentation, I would make a separate list of the months you want to include, and put the formula next to it, instead of the formula next to the actual list of data (as in the other question). As for how to write/input the month, you can put it any way you want, as long as it is a valid date in Excel. With the cell formatting you then can show it as month and year only. This is just to say that a text input JANUARY 2018 does not work (in a normal cell, eg. a cell that you did not format as text, when you type that into the cell, Excel recognizes this as a date, and will actually put 1/1/2018).
Oh, and using a Pivot table would work as well, the other answer on the question referenced above also explains how to do that.
In some cases, how Excel handles dates is very convenient.
For you, the date format doesn't matter. It is simply a number counting days with 0 being December 31st, 1899.
13/11/18 the date is the integer 43417 in-cell value. Excel interprets this as a both date and time together. The whole numbers are the days while the decimals are the time of day as a fraction of the day. 43417.5 would be noon.
So you may use COUNTIFS to help here.
=COUNTIFS(PPlanner!$X:$X, 1367, PPlanner!$D:$D, ">"&43404, PPlanner!$D:$D, "<"&43435)
This is going to look at sheet PPlanner column X and count how many instances of 1367 occur after the last day of October and before the first day of December. There are other ways to accomplish this, but it allows you to count within any date range you want.
I have daily data from 01-Jan-2005 till 29-Dec-2017. I want for each year to select the last day of March, June, September, and December, alongside their respective data. Part of the data:
Date Variable
30-Mar-2005 1.2943
31-Mar-2005 1.2964
1-Apr-2005 1.2959
4-Apr-2005 1.2883
5-Apr-2005 1.281
I.E: For 2005, I want the dates of 31-March-2005, 30-June-2005, 30-September-2005, and 30-Dec-2005. Desired output:
Date Variable
31-Mar-2005 1.2964
30-Jun-2005 1.9859
30-Sep-2005 1.2233
30-Dec-2005 1.2814
I currently have the build in excel formulas (i haven't installed any other plug-ins etc).
More specifically: on the left i have the data, and on the right the desired output.
Not sure if this is going to work to you, but anyways.
Looks like you always look at the last day of months March, June, September and December on a specific year (in example, 2005).
But you are not looking for the last natural day of each month. You want the last day of each month that appears in your data (in example, that explains why you use 30 december 2005 instead of 31, because there is no 31).
In Excel, dates are numbers. The more you go in the future, a bigger number is related. Knowing this, you can get the date for each month just looking the MAX value of a range of dates.
But first, you need to define the range of dates, using 2 conditions:
Month of date must be March, June, September and December
You want dates for a specific year (in example, 2005).
To get this, you need an array formula. My formula gets the max day of a specific month and year. To test it, in my Excel I did a dates series, starting in 01/01/2005 and done in 31/12/2017. I deleted manually 31/12/2005 because that date has no data.
In cell I4, just type the year you want to check. The formula will get he last day of months March, June, September and December of that year.
My array formula is:
=MAX(IF(MONTH(IF(YEAR($A$4:$A$4750)=$I$4;$A$4:$A$4750))=3;$A$4:$A$4750))
IMPORTANT!: Because it is an array formula, you will need to type it
as usual, and then, instead of pressing Enter press
CTRL+SHIFT+ENTER
You need 4 times this formula. Just change the 3 (March) for the number of the month you need (6,9 and 12).
Now that you have the dates, you just need a VlookUp to get the value you want.
=VLOOKUP(G5;$A$4:$B$4750;2;false)
If I change the year value, i get those new values:
If you want to check the file. I uploaded an example to Gdrive, so you can download if you want.Download
Anyways, try to adapt this formulas to your needs.
I converted a list of Euro conversions into a Table and used structured references. But you can use normal range references if you prefer.
In some other table, enter the following formula, where $A$45 refers to the first quarter ending date in your data table.
F2: =IF(EOMONTH($A$45,(ROWS($1:1)-1)*3)>MAX(Table1[Date]),"",LOOKUP(2,1/(EOMONTH($A$45,(ROWS($1:1)-1)*3)>=Table1[Date]),Table1[Date]))
In the adjacent column, enter the formula:
G2: =IFERROR(VLOOKUP(F3,Table1,2,FALSE),"")
And fill down until you get blanks.
(in my sample table, the last date is 1/27/2006 so the last included "End date" is 12/30/2005, there being no data for 12/31/2005)
So, there are two cases
When you have the exact last days of the month. (Its simpler).
I had a fortnightly data. I adopted this simple and innovative method. From all the dates, I first extracted the day using Day() function. for example, Day(A1). (Remember, while doing this, do not delete your original date column. Do it in a separate column as this would help you match the dates later).
Then I sorted the data using the Day column, just constructed before, in decreasing order. This would place all end dates at first. And then deleted the starting dates which were at bottom. So, now I am left with only end dates but obviously months are not in order.
So, create another column extracting just the month and year from the original date column using =MONTH(A1) & "/" & YEAR(A1). Sort the data using this column. And, you are good to go!
When you do not have the exact last days, but maximum dates like the one shown above in picture.
In this, while deleting the initial dates, you would have to take care of which date on-wards you need to delete.
For example, I deleted day 17 on-wards of months with 31 days (including day 17) and day 16 on-wards of months with 30 days (if present) because if there was this date, suppose, 18 April 2018, then this would be the last day of the month as I had a fortnightly data.
This question is for educational purposes only, as I have already solved this problem in a way I dislike...
Sheet looks following and has rows for months, in each row there is a column for days that month and for current month
I have a formula that calculates how many days have passed this month or month that has passed which is used in some later calculations.
=TODAY()-DATE(2017,6,1)+1
Currently at the end of month I have to go and change formula to (as they go over 31 day in a month)
=DATE(2017,5,31)-DATE(2017,5,1)+1
What I would like to do is something like:
=MIN(TODAY(),DATE(2017,6,30))-DATE(2017,6,1)+1 to take whichever date is less, so I could do the formulas for the months in advance and not need to go back to it at the end of every month...
I can do it like =MIN(TODAY()-DATE(2017,6,1),DATE(2017,6,30)-DATE(2017,6,1))+1 but it looks somewhat not nice...
How do I compare two dates and take one that is smaller?
After a chat room discussion, it appears that one problem was the formatting of the results.
So =MIN(TODAY(),DATE(2017,6,30))-DATE(2017,6,1)+1 is sufficient
Excel stores dates as serial numbers with 1 = 1-Jan-1900.
If one wants to return a date, the cell containing the formula should be formatted as a date.
If one wants to return a numeric value, the cell containing the formula should be formatted as General or as a number with the appropriate number of decimals.
Excel does not always format the cell as desired by the user, so this may need to be edited.
Days passed for that month is nothing but the day. You can directly use the below formula, I believe.
=min(day(date(2017,6,30)), day(DATE(2017,6,4)))
if you want that as a date. Then you can include another date function to include month and year. If you just want the smaller date itself, then you can directly use the date itself in the min function
=min(date(2017,6,30), date(2017,6,4))
You have TODAY() function to get today date, you can get this month by MONTH function in excel.
TODAY() - DATE(2017, MONTH(TODAY()), 1) + 1
reference
If you want to know how many days have passed, can't you just use
=TODAY()-(EOMONTH(TODAY(),-1)+1)
Is this even possible and if it is, what would be the best way to go about it?
What I'm trying to do?
I've been trying to setup a database of documents in Excel (name of document with a hyperlink to a folder structure where it is saved) along with their dates of issuing, time period for which they are valid and their expiry date - each in its own column.
For example, a date of issue for Document_001 is 21-02-2015, it is valid for one year, so its expiry date is 21-02-2016. That part is solved.
Now, these documents are certificates of a certain kind, and they are issued upon inspection completeness, which takes some time to organize and prepare. That's why in the fourth column I have a date which is 3 months before the date of expiry. So, for Document_001 that would be 21-11-2014.
Now the part which I cannot figure out; is there a way to make Excel compare the dates in this column with the current one (TODAY()) and change the colouring of the cells which are past it?
If you had the 'warning date' in cell D1 (for example), you can add the following formula in another column:
=today()-D1
If you format this cell as a number, this will give the number of days between today and the warning date. This number will be positive if today is before the warning date and negative if the warning date has passed (or zero if the warning date is today).
You can then use conditional excel formatting, and then format the cell, for example, in red if the cell value is negative. Conditional formatting is slightly different on older versions of Excel, but there is an overview here