OK, can you provide some sample data which exhibits the problem and what the output *should* be? Pretty sure the formula can be adapted. I also published it as a Quick Measure with a few updates. Not sure if the updates would solve the issue:
Proud to be a Datanaut!
Fix it with creating a new table and joining it with the current on. All in dax, see formula below
Might not be the fastest with creating a fer variables, I still need to learn how to do it, but it gets the job done perfectly!
PresenceGrouping = VAR __datetable = GENERATESERIES( MROUND(MIN(PowerBI_Status[Starttime + Date])-1/24, "1:00"), NOW()+1/24, TIME(1,0,0)) VAR __datetable1 = ADDCOLUMNS(__datetable, "_endtime", [Value] + 1/24) VAR __table2 = FILTER( CROSSJOIN(__datetable1, PowerBI_Status), [_endtime] >= PowerBI_Status[Starttime + Date] && [Value] <= PowerBI_Status[Endtime + Date]) VAR __table3 = SELECTCOLUMNS(__table2, [columns here, to much to show]) RETURN ADDCOLUMNS(__table3, "Seconds", SWITCH( TRUE(), [PresenceStart] < [Start] && [PresenceEnd] > [end], 3600, [PresenceStart] < [Start] && [PresenceEnd] <= [end], DATEDIFF([Start], [PresenceEnd], SECOND), [PresenceStart] >= [Start] && [PresenceEnd] > [end], DATEDIFF([PresenceStart], [end], SECOND), DATEDIFF([PresenceStart], [PresenceEnd], SECOND) ) )