Get certified for free when you join Fabric Data Days 2026 and dive into Fabric, Power BI, SQL, AI, and other essential data skills.
Join nowData Days is here! Join us now for 60+ days of learning, challenges, and connection. Learn more
Hello there,
a field called "lastseen" contains a String which represents a date in the format YYYYMMDDHHMMSS. For example 20230516075823.
How can I convert it to DD.MM.YYYY?
I treid the following code from Solved: Converting Text into Date - Microsoft Power BI Community
Table.TransformColumns(#"_RSALL_FULL_PERNR-USERS",{{"lastseen", each if _ = "0" then null else Text.Insert(_,8,"T"), type text}})
But I get the error: Expression.Error: The name '_RSALL_FULL_PERNR-USERS' wasn't recognized. Make sure it's spelled correctly.
Solved! Go to Solution.
Hi @Anonymous
See attached PBIX here.
In Powerquery take the left 8 characters by adding a custom column using Text.Start
Table.AddColumn(Source, "Custom", each Text.Start([StringDate],8))
Then use Date.FromText on that column
Table.AddColumn(#"Added Custom", "Date", each Date.FromText([Custom]))
Did I answer your question? Mark my post as a solution! Appreciate your Kudos !! Happy to help!!
Pete
Web: https://binavigation.com
Linked In: https://www.linkedin.com/in/pete-smith-955b73181
Hi @Anonymous
See attached PBIX here.
In Powerquery take the left 8 characters by adding a custom column using Text.Start
Table.AddColumn(Source, "Custom", each Text.Start([StringDate],8))
Then use Date.FromText on that column
Table.AddColumn(#"Added Custom", "Date", each Date.FromText([Custom]))
Did I answer your question? Mark my post as a solution! Appreciate your Kudos !! Happy to help!!
Pete
Web: https://binavigation.com
Linked In: https://www.linkedin.com/in/pete-smith-955b73181
HI @Anonymous
Here is a video showing a method I used at my place that worked well.
https://www.youtube.com/watch?v=6kKT6QGikMM
If you are still having trouble, please share a sample table with your data.
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly
In the Video he hast the Format YYYMMDD. In my case I habe the format YYYYMMDDHHMMSS, when I follow the Steps in the Video I get a Error.
Hi @Anonymous
As I mentioned in my previous response, I would be happy to assist,
Please share the data table in a format that I can work with.
Thanks, Rita.
Don't miss out on Data Days, June 15 through August 7. Learn Fabric, Power BI, SQL, AI and more.
Check out the May 2026 Power BI update to learn about new features.
| User | Count |
|---|---|
| 23 | |
| 21 | |
| 20 | |
| 18 | |
| 13 |
| User | Count |
|---|---|
| 58 | |
| 50 | |
| 38 | |
| 31 | |
| 27 |