Calculate date difference over time

[JoaoSifredo]

Hello community I can't calculate a measure that calculates days lost across 2 dates (beginning of the decline and end of the decline).

I have a fact table that shows me all the accidents, the date the accident occurred and the dates of sick leave.

How can I calculate the days lost?

Thanks for the help.

[v-weiyan1-msft]

Hi @JoaoSifredo ,

Based on your description,
Please try code as below to create a measure.
My Sample:

The lost days = DATEDIFF(SELECTEDVALUE('Table'[Inicio]),SELECTEDVALUE('Table'[Fim]),DAY)+1

Result is as below.

Please correct me if I misunderstood your needs.

Best Regards,
Yulia Yan

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[JoaoSifredo]

@v-weiyan1-msft  Many thanks for the reply.

It's not the solution I want. I intend to know how many lost days I have each month. We have sick leave that lasts for several months. After applying slicers, I want to know how many days were lost each month. There may be casualties that start on the same day.