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Anonymous's avatar
Anonymous
Not applicable
5 years ago
Solved

convert to date format

Hi,

I am getting below error in date column. could you please help to convert to date format (mm/dd/yyyy)

 

"power bi DataFormat.Error: We couldn't parse the input provided as a Date value. Details: 44201"

 

Thanks in advance 

suren

Need Help
  • zzcc's avatar
    zzcc
    5 years ago

    Hi, Anonymous 

     

    column:

    Column = 
    IFERROR(FORMAT(('Table'[Column1]-DATE(1899,12,30))+DATE(1899,12,30),"mm/dd/yyyy"),BLANK())

    measure:

    Measure = 
   IFERROR(FORMAT((MAX('Table'[Column1])DATE(1899,12,30))+DATE(1899,12,30),"mm/dd/yyyy"),BLANK())

    result:

     

     

     

    Zerrick

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11 Replies

  • amitchandak's avatar
    amitchandak
    Super User
    5 years ago

    Anonymous , do you have all values as number , that can days from 1-1-1970 or 1-1-1900

     

    Date =date(1900,1,1) + [Days]

     

    or

    Date =date(1970,1,1) + [Days]

     

    or

    Can you share sample data and sample output in table format? Or a sample pbix after removing sensitive data.

    • Anonymous's avatar
      Anonymous
      Not applicable
      5 years ago

      Hi Amit,

       

      My date field contains below values.Could you please suggest to format as mm/dd/yyyy

       

       

      Thanks

  • zzcc's avatar
    zzcc
    Frequent Visitor
    5 years ago

    Hi, Anonymous 

    To create a measure like this:

     

    Measure = (MAX('Table'[Column1])-DATE(1899,12,30))+DATE(1899,12,30)

     

    or create a column:

     

    col = ([Column1]-DATE(1899,12,30))+DATE(1899,12,30)

     

    result:

     

    Zerrick

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    • Anonymous's avatar
      Anonymous
      Not applicable
      5 years ago

      Thank you zerick.

       

      But requirement is to convert this serial format(44236, 44239) to MM/DD/YYYY in query editor 

       

      Suren

      • zzcc's avatar
        zzcc
        Frequent Visitor
        5 years ago

        Hi, Anonymous 

        measure

         

        Column = 
var _1=([Column1]-DATE(1899,12,30))+DATE(1899,12,30)
return FORMAT(_1,"mm/dd/yyyy")

         

        column

         

        Measure = 
var _1=(MAX('Table'[Column1])-DATE(1899,12,30))+DATE(1899,12,30)
return FORMAT(_1,"mm/dd/yyyy")

         

         result:

        In power query

         

        let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMtY3MtU3MjAyVIrViVYyMTEyNgOzgOJGqOKWSrGxAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column1 = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Column1", type text}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Custom", each try (Duration.From([Column1]))
otherwise null),
    #"Added Custom1" = Table.AddColumn(#"Added Custom", "Custom.1", each try(Date.From([Column1]))
otherwise null),
    #"Changed Type1" = Table.TransformColumnTypes(#"Added Custom1",{{"Custom", type duration}}),
    #"Added Custom2" = Table.AddColumn(#"Changed Type1", "Custom.2", each #date(1899,12,30)+[Custom]),
    #"Merged Columns" = Table.CombineColumns(Table.TransformColumnTypes(#"Added Custom2", {{"Custom.1", type text}, {"Custom.2", type text}}, "en-US"),{"Custom.1", "Custom.2"},Combiner.CombineTextByDelimiter("", QuoteStyle.None),"Merged"),
    #"Removed Columns1" = Table.RemoveColumns(#"Merged Columns",{"Custom", "Column1"}),
    #"Changed Type2" = Table.TransformColumnTypes(#"Removed Columns1",{{"Merged", type date}})
in
    #"Changed Type2"

         

         

         

        Zerrick

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    • mahoneypat's avatar
      mahoneypat
      Microsoft Employee
      5 years ago

      You can add a custom column (or adapt a transform column step) with this formula

       

      = try Date.From([Date]) otherwise Date.AddDays(#date(1900,1,1), Number.FromText([Date]))

       

      Pat

       

      • zzcc's avatar
        zzcc
        Frequent Visitor
        5 years ago

        Hi, mahoneypat 

         

        You are absolutely right, obviously I am still not familiar with the PoweQuery language. It definitely saves a lot of steps.
        But what confuses me is that in Excel it seems that the first day is January 1, 1900, and the result I get after converting the numbers to dates in Power BI indicates that the first day should be December 30, 1899, which is a little strange.
        But your formula is definitely correct anyway. Thanks for sharing.

         

        Anonymous  if you want to get result in Power Query, here is the improved M code:

         

        let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMtY3MtU3MjAyVIrViVYyMTEyNgOzgOJGqOKWYBaYUFCKjQUA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column1 = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Column1", type text}}),
    a = Table.AddColumn(#"Changed Type", "1899-12-30", each try Date.From([Column1]) otherwise Date.AddDays(#date(1899,12,30), Number.FromText([Column1])))//,
    //b = Table.AddColumn(a, "1900-1-1", each try Date.From([Column1]) otherwise Date.AddDays(#date(1900,1,1), Number.FromText([Column1])))
in
    a//b

         

         

        Zerrick

        Did I answer your question? Mark my post as a solution!