Time Delta with negative hour handling

[DonPepe]

Good Afternoon, 

I am currently looking for a solution to get the duration between two Date-Time value.

The issue is that I have to handle positivie and negative hour like in these 3 different scenarios : 

• End time > Start time 
• End time < Start time
• End date <> Start date 

Here an exemple of the 3 scenarios. 

Activity Type             Start time             End time 

Drive	20-10-21 00:06	20-10-21 00:11
Time correction	20-10-21 01:10	20-10-21 00:06
Drive	20-10-21 23:06	21-10-21 00:22

Do you know how I can have the duration in hh:mm:ss of each activity ? 

Thank's in advance,

Don 

[CNENFRNL]

Simple enough to handle it in PQ,

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WcinKLEtV0lEyMtA1NNA1MlQwMLAyMEMTMDRUitWJVgrJzE1VSM4vKkpNLsnMzzu0AEWZoZWhAaZBIH1gO1BVGxlDbTFCqDYyUoqNBQA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"Activity Type" = _t, #"Start time" = _t, #"End time" = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Activity Type", type text}, {"Start time", type datetime}, {"End time", type datetime}}, "fr"),
    Dur = Table.AddColumn(#"Changed Type", "Duration", each let dur = List.Max({[End time]-[Start time], [Start time]-[End time]}) in Text.Format("#{0}h : #{1}m : #{2}s", {Number.RoundDown(Duration.TotalHours(dur)), Duration.Minutes(dur), Duration.Seconds(dur)}))
in
    Dur

[DonPepe]

Hi @CNENFRNL,

Thanks a lot, I tried in Power query and it works but I was loking for a DAX solution. 

[Greg_Deckler · Accepted solution]

@DonPepe Just subtract them then turn that into seconds and then you can use Chelsie Eiden's duration.

Column = ([Start] - [End]) * 1. * 24 * 60 * 60

Chelsie Eiden's Duration - Microsoft Power BI Community

[DonPepe]

Hi @Greg_Deckler ,

Thanks for your answer and for the link to your book, I need it also ! 

Excellent day,

Don