Help with Epoch Time conversion

[fowl04]

Hello. So I am converting epoch time to standard time and date format but I have some cells that are blank and the conversion is returning 1/1/1970. How can i prevent it from doing that. I want it to show a blank if the cell is blank but not 1/1/1970. Here are screen shots of what it is doing and what I have.

So to sum it up. I want to convert cells that only have a value in it only and for it to ignore the blank cells.

[v-jianboli-msft · Accepted solution]

Hi @fowl04 ,

Based on your description, I have created a simple sample:

Please try to add a new column:

Here is the M code:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WclTSUTI0Mzc2tTSAAKVYnWglJ6AomOEMY7jAGK5gDQZmRmZGJlANsQA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ID = _t, Epoch = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"ID", type text}, {"Epoch", Int64.Type}}),
    #"Added Conditional Column" = Table.AddColumn(#"Changed Type", "Custom", each if [Epoch] = null then "" else #datetime(1970,1,1,0,0,0)+#duration(0,0,0,[Epoch]/1000))
in
    #"Added Conditional Column"

Final output:

Best Regards,

Jianbo Li

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