Showing results for 
Search instead for 
Did you mean: 
Frequent Visitor

Difference between two columns (date & time)

Hello togehter,


is there a way to calculate the difference in hour + / - between two columns?

I have  column with Date / Time where the ticket is opend, the second columune include the Date / Time SLA.

So I need the difference, if the SLA is fall belows or they is exceeded.


Many thanks for help.



Continued Contributor
Continued Contributor

HI p_fehrenbach 


Please consider using this solution in the M query .....


Define both the sla duration and actual duration with date time data types.


Add a column with Difference = sla duration - actual duration

Transform the Difference data type to minutes

Filter where the Difference  < 0




Many thanks for the answer. I had already tried that. unfortunately power query changes the type when I load the data into the model, from time to decimal. If I put the data back in time in the model, all decimal numbers are positive.


(The negativ value in this scenario is good one)


For Example in the last Row:




We finished te ticket at the 22.10.2019 16:30:00

It could have been closed until 23.10.2019 12:40.

The Result is + 20:10:00 hours.

The Result have to be - 20:10:00 hours.




Helpful resources

PBI User Groups

Welcome to the User Group Public Preview

Check out new user group experience and if you are a leader please create your group!

MBAS on Demand

Microsoft Business Applications Summit sessions

On-demand access to all the great content presented by the product teams and community members! #MSBizAppsSummit #CommunityRocks

MBAS Attendee Badge

Claim Your Badge & Digital Swag!

Check out how to claim yours today!


Are You Ready?

Test your skills now with the Cloud Skills Challenge.

Top Solution Authors