DATEDIFF

Syntax

DATEDIFF(<start_date>, <end_date>, <interval>)

Tutorial with example

EXAMPLE 1

In today’s video, I will show you how to calculate the difference between two dates using DATEDIFF.
I also show you how to overcome the issue when the start date is larger than the end date.

Link to Northwind dataset: https://www.youtube.com/watch?v=k3NMIlLffrU

Link to DAX Switch: https://www.youtube.com/watch?v=-ykkaAtlCMc

Download example file:

Link to demo file here.

EXAMPLE 2

In today’s video we will deconstruct a measure that was created by a microsoft employee in the Power BI community:

Link to the Power BI community post: https://community.powerbi.com/t5/Desktop/Calculate-duration-based-on-dates-in-different-rows/td-p/58886

In this video we will go also through the functions:
05:56 LOOKUPVALUE
09:12 DATEDIFF and
How to calculate the difference between two dates in the same column in Power BI.

EXAMPLE 3

Do you know how to calculate the difference between dates when both are in the same column?

One example of when this is needed is when you are working with subscription based services. If you want to calculate how many dates go between users changing subscriptions, this DAX measure will help you.

Download example file:

Download the pbix and excel file here.

Remarks

An error is returned if start_date is larger than end_date.