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Frequent Visitor

## Find time difference (hh:mm:ss) between two datetimes

Hey all,

I am probably missing something stupidly easy, but I have two columns:

 Date 1 Date 2 31/01/2022 08:12:01 31/01/2022 09:32:46 31/01/2022 08:10:53 31/01/2022 08:12:26 31/01/2022 07:58:50 31/01/2022 08:03:30

What I am trying to achieve is a column or measure that can tell me the difference between these two fields, for example it would look like:

 Date 1 Date 2 Difference 31/01/2022 08:12:01 31/01/2022 09:32:46 01:20:45 31/01/2022 08:10:53 31/01/2022 08:12:26 00:01:33 31/01/2022 07:58:50 31/01/2022 08:03:30 00:04:40

But I cant seem to make this happen? When I try a measure of simply date2-date1, it doesnt work. Datediff doesnt let me choose my date1/2 fields to put into the measure. I add a column into the data query to generate it row by row but when I try to convert that value to time it errors saying it cant be done on a direct query dashboard?

Any help greatly appreciated!

1 ACCEPTED SOLUTION
Super User

@MikeLanglois You need to convert the hh:mm:ss to seconds, perform the subtraction and then convert back to hh:mm:ss or use Chelsie Eiden's duration to keep it as a numeric value with a custom format string.

Duration to Seconds Converter - Microsoft Power BI Community

Chelsie Eiden's Duration - Microsoft Power BI Community

Become an expert!: Enterprise DNA
External Tools: MSHGQM
Latest book!:
Power BI Cookbook Third Edition (Color)

DAX is easy, CALCULATE makes DAX hard...
2 REPLIES 2
Super User

@MikeLanglois You need to convert the hh:mm:ss to seconds, perform the subtraction and then convert back to hh:mm:ss or use Chelsie Eiden's duration to keep it as a numeric value with a custom format string.

Duration to Seconds Converter - Microsoft Power BI Community

Chelsie Eiden's Duration - Microsoft Power BI Community

Become an expert!: Enterprise DNA
External Tools: MSHGQM
Latest book!:
Power BI Cookbook Third Edition (Color)

DAX is easy, CALCULATE makes DAX hard...
Frequent Visitor

Thanks for the links. What an incredibly long winded way of doing one value minus another! Assumed it would be that simple as it is on other Microsoft products.

Anyway thanks again

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