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Helper II

## DAX: calculate difference between date/times with conditions

Hi,

I have data of telephone calls with details of each call.

Now I need to calculate the duration of each call if the reason is completed.

So for the call with call_id 123 the duration is 4 minutes.

I have no idea where to start ...
I really would like to learn how to do this.

1 ACCEPTED SOLUTION
Super User

@Dicko

Add the following code as a new column to your table:

``````Difference =

VAR __ID = Table2[call_id]
VAR __TIME = Table2[timestamp]
RETURN

IF(
Table2[reason] = "completed",
DATEDIFF(
CALCULATE(
min(Table2[timestamp]),
Table2[call_id] = __ID,
Table2[timestamp] < __TIME,
REMOVEFILTERS(Table2)
),
__TIME,
MINUTE
)
)``````

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2 REPLIES 2
Super User

@Dicko

Add the following code as a new column to your table:

``````Difference =

VAR __ID = Table2[call_id]
VAR __TIME = Table2[timestamp]
RETURN

IF(
Table2[reason] = "completed",
DATEDIFF(
CALCULATE(
min(Table2[timestamp]),
Table2[call_id] = __ID,
Table2[timestamp] < __TIME,
REMOVEFILTERS(Table2)
),
__TIME,
MINUTE
)
)``````

Did I answer your question? Mark my post as a solution! and hit thumbs up
Helper II

Thanks! I learned something new 🙂