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ChetInSanJose's avatar
ChetInSanJose
Copper Contributor
Sep 22, 2022

DateValue function

Years ago, I set up a spreadsheet to monitor and graph my blood pressure, using the DATEVALUE function to convert text dates to numerical dates. When trying to update the table today, I discovered th...
Excel
ChetInSanJose's avatar
ChetInSanJose
Copper Contributor

JoeUser2004 Here are the cells' contents.  The formulae worked for years, but today they no longer do.

 

B3 'Jul. 16
C3 '18H14 (I use a 24 Hr. clock)
E3 =DATEVALUE(CONCATENATE(RIGHT(B3,2),"/","1","/",ThisYear))+TIMEVALUE(CONCATENATE(LEFT(C3,2),":",RIGHT(C3,2),":","00"))

 

The objective is to get an Excel date function for the exact time of day on a particular day.

 

Joe User suggests there may be a change in the date function causing this.  I'll be looking at that.

 

Thanks again.

ChetInSanJose's avatar
ChetInSanJose
Copper Contributor
Sep 22, 2022
I just opened the file again, and now the formulae magically work again. I seem to have wasted everybody's time. Problem solved, but I don't know how. Incidentally, "ThisYear" is a range name currently having the value 2022. Thanks, everyone for trying to help me thru this mystery!
  • JoeUser2004's avatar
    JoeUser2004
    Bronze Contributor
    Sep 23, 2022

    ChetInSanJose  wrote:  `` I seem to have wasted everybody's time. Problem solved, but I don't know how.``

     

     

    Maybe not.  As I wrote:  ``That [date configuration] might have changed, unbeknownst to you, especially if you use Office 365 (based on other users' experience)``.

     

    I do not use Office 365 myself, for the very reason that MSFT seems to "update" it frequently with apparently poorly tested changes.

     

    Again, I base that conclusion on other users' questions/complaints that are posted here and in other Excel forums.  The conclusion might be wrong, based on biased and unknowledgeable comments.

     

    (I also object to paying a periodic "subscription" fee for something that I used to pay a one-time purchase price.)

     

    PS....  I confirm that when the system date configuration is d/M/yyyy, the DATEVALUE formula in E3 works with the text data in C3 and D3 and with 2022 in a cell named ThisYear.

     

    OTOH, I also confirm that the formula returns #VALUE if the system date configuration is M/d/yyyy, which is the default for San Jose, CA, USA.

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