How to display Total Time/Duration in a matrix

Hello v-jiascu-msft ,

Thanks for the help so far!

I have accomplished to use your DAX-Code and insert DAX language for showing the days.

However my Code won't work, because of the days I think.

If I use "... return days & "." & hours & ":" & minutes & ":" & seconds)", I get a note that the visualization won't open. And if I use "... return days & " " & hours & "" & minutes & "" & seconds)", the visualization will show, but I get a decimal number. 

So my question is what I should do if I want to show the duration of an activity. When an activity has cost several days and I want to show days.hours:minutes:seconds.

I hope you can help me and again thanks for the help so far. Besides my apologies for my English, I'm not a native speaker:smileyvery-happy:.

Hello v-jiascu-msft  ,

Thanks for the help so far!

I have accomplished to use the DAX-Code out of "Addition-of-time-in-a-day. " and insert DAX language for showing the days.

However my Code won't work, because of the days I think.

If I use "... return days & "." & hours & ":" & minutes & ":" & seconds)", I get a note that the visualization won't open. And if I use "... return days & " " & hours & "" & minutes & "" & seconds)", the visualization will show, but I get a decimal number. 

So my question is what I should do if I want to show the duration of an activity. When an activity has cost several days and I want to show days.hours:minutes:seconds.

Besides my apologies for my English, I am not a native speaker.