Date Difference for two rows

[manyerukebenn]

I am having problems calculating date difference for the below scenario. I want to calculate the total time spent on a particular job by a mechanic. When the mechanic start and pause we should calculate the difference between the two times, when he resumes and completes the task we should also calculate the difference between the 2nd start time and the completion time, finally we sum the 2 date differences. Time taken = (Pausedtime-Starttime)+( CompleteTime- Starttime)

On the below scenario the expected result is 10 munites

Fleet No.	DocEntry	TaskCode	Task Description	Status	Mechanic	Activity Time	Job Title	Expected Result
T001	3	SFREN24	ENGINE OIL LEAK MINOR	Started	Mechanic 1	14/03/2018 17:58	Diesel Mechanic
T001	3	SFREN24	ENGINE OIL LEAK MINOR	Paused	Mechanic 1	14/03/2018 18:03	Diesel Mechanic	5 min
T001	3	SFREN24	ENGINE OIL LEAK MINOR	Started	Mechanic 1	15/03/2018 10:40	Diesel Mechanic
T001	3	SFREN24	ENGINE OIL LEAK MINOR	Stopped	Mechanic 1	15/03/2018 10:45	Diesel Mechanic	5min
								10 min

[Chthonian]

Hi @manyerukebenn 

I am a bit of an amateur and there would be a much more sophisticated way to achieve this  but this solution worked for me 🙂

Job Duration = 
    VAR JobStart = CALCULATE(MIN(Table1[Activity Time]), Table1[Status ] = "Started")
    VAR BreakStart = CALCULATE(MIN(Table1[Activity Time]), Table1[Status ] = "Paused")
    VAR BreakEnd = CALCULATE(MAX(Table1[Activity Time]), Table1[Status ] = "Started")
    VAR JobEnd = CALCULATE(MAX(Table1[Activity Time]), Table1[Status ] = "Stopped")
RETURN
CALCULATE(
    DATEDIFF(JobStart,JobEnd,MINUTE) - DATEDIFF(BreakStart,BreakEnd,MINUTE)
)

PS: Ignore the 'DocEntry' figure, forgot to remove the quick sum calc 😁