Sum Total Time Spent on Activity

[affanalvi]

Dear All, 

I'm working on a report and I have different users performing same activity throughout the day. Each line item is considered as one transaction and I have date and time stamp for each transaction.  

Also, some users are running a batch for the said activity hence there will be different line items / transactions at the same second.

With this data, I am trying to calculate how much time in a day, each user spent on the said activity. Below is example of how the data looks like.  Any idea how can I do this in Power Query. 

User	Activity	Date	Time
B	ABC	1-Mar-21	10:44:26 AM
B	ABC	1-Mar-21	10:44:26 AM
B	ABC	1-Mar-21	10:44:27 AM
B	ABC	1-Mar-21	10:44:27 AM
B	ABC	1-Mar-21	10:44:28 AM
B	ABC	1-Mar-21	10:44:29 AM
B	ABC	1-Mar-21	10:44:29 AM
B	ABC	1-Mar-21	10:44:29 AM
B	ABC	1-Mar-21	10:44:30 AM
B	ABC	1-Mar-21	10:44:31 AM
B	ABC	1-Mar-21	10:44:31 AM
B	ABC	1-Mar-21	10:44:32 AM
C	ABC	2-Mar-21	12:00:35 AM
C	ABC	2-Mar-21	3:30:09 AM
C	ABC	2-Mar-21	3:30:10 AM
C	ABC	2-Mar-21	3:30:11 AM
C	ABC	2-Mar-21	3:30:14 AM
C	ABC	2-Mar-21	4:00:14 AM
C	ABC	2-Mar-21	4:00:14 AM
C	ABC	2-Mar-21	4:00:15 AM
C	ABC	2-Mar-21	4:00:15 AM
A	ABC	2-Mar-21	10:44:26 AM
A	ABC	2-Mar-21	10:44:27 AM
A	ABC	2-Mar-21	10:44:28 AM
A	ABC	2-Mar-21	10:44:29 AM
A	ABC	2-Mar-21	10:44:30 AM
A	ABC	2-Mar-21	10:44:30 AM
A	ABC	2-Mar-21	10:44:31 AM
A	ABC	2-Mar-21	10:44:31 AM
A	ABC	2-Mar-21	10:44:32 AM
A	ABC	2-Mar-21	10:44:32 AM
A	ABC	2-Mar-21	10:44:32 AM
A	ABC	2-Mar-21	10:44:32 AM
A	ABC	2-Mar-21	10:44:33 AM

[ChrisMendoza · Accepted solution]

@affanalvi -

Here's a possibility:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("zdI7CoAwDAbgq0hnhSStj2arzp5AHLyC9x98gA+K1AxBXEKGb/gT/mEwrclNaLt1YtFPc0G4rcDOMVVZ6M2YK6BaDTUS5D9FFiQI1RAdqDsR3RAxANsyiewamsG/GwSBQYFxSeO2zGomfXtkQvb4xajcSVWLVCNSXqKuxikoVFT0U2V3NS4=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [User = _t, Activity = _t, Date = _t, Time = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"User", type text}, {"Activity", type text}, {"Date", type date}, {"Time", type time}}),
    #"Grouped Rows" = Table.Group(#"Changed Type", {"Activity", "User", "Date"}, {{"Grouped", each _, type table [User=nullable text, Activity=nullable text, Date=nullable date, Time=nullable time]}, {"Min", each List.Min([Time]), type nullable time}, {"Max", each List.Max([Time]), type nullable time}}),
    #"Added Custom" = Table.AddColumn(#"Grouped Rows", "Duration", each DateTime.From([Date]&[Max]) - DateTime.From([Date]&[Min])),
    #"Changed Type1" = Table.TransformColumnTypes(#"Added Custom",{{"Duration", type duration}}),
    #"Removed Columns" = Table.RemoveColumns(#"Changed Type1",{"Grouped", "Min", "Max"})
in
    #"Removed Columns"

Measure = FORMAT(SUM(TableName[Duration]),"hh:mm:ss")