Dataflows - UK/US Date Format

Status: New
by tanyad Regular Visitor on ‎11-08-2018 02:47 PM

Just trying out the Dataflow feature and sadly anything other than US date format does not appear to work.  I am using a DimDate table which has dates in UK format.  Created a Dataflow, all date field that were in UK format came in as US Format - as far as I can see there is no where to set the date format to UK.  So i then connected to the Dataflow from the Desktop and all the date columns error because the service thinks they are invalid dates.  There is life outside of the US :-)  If this is a bug please fix it quicker than you did when PBI first came out and the same US/UK format issue took nearly a year to fix.



by Moderator v-qiuyu-msft
on ‎11-08-2018 11:02 PM

Hi @tanyad,


Please change your OS date format as UK, then restart the Power BI dekstop. Reopen the report, refresh query in query editor to see if the issue is gone. See:


Best Regards,
Qiuyun Yu 

by tanyad Regular Visitor
on ‎11-09-2018 12:42 AM

I am in the UK, my OS date format is the UK, Power BI Desktop is set to UK, the Dataflow is set to UK and finally, my browser is UK.

by sagivh Frequent Visitor
on ‎11-11-2018 01:42 AM

Hi tanyad, there is another language settings location and that is within the power query editor - can you make sure to open that dataflow, and within the editor click options and set the right locale? then save the dataflow and make sure to refresh. the data will be refreshed with the right locale. 



by tanyad Regular Visitor
on ‎11-12-2018 12:37 AM

As per my previous post everything is in UK incuding the dataflow and still it stays in US format.

by tanyad Regular Visitor
on ‎11-12-2018 11:51 AM

@sagivh @v-qiuyu-msft - some additional information.  It seems that when you set the locale in the options of the Dataflow, after a certain amount of time it reverts back to US.  When i first posted this problem I had changed the local in the query editor to that of the UK.  When i received @sagivh comment i went in to double check and it was set to US so i set it back to UK and refreshed - still the same problem.  Now some hours later i have gone in and checked again and the local has reverted itself back to US.  I am taking a screen shot of it set to UK and will check later to see if it is set back to US.  and before you ask YES i am saving the changes :-)

by tanyad Regular Visitor
on ‎11-12-2018 12:02 PM

@sagivh @v-qiuyu-msft - just clarify how things stand now (and I have refreshed the data) .... I will check back later to see if it has reverted back to US locale2018-11-12_19-52-53.png

by sagivh Frequent Visitor
on ‎11-12-2018 12:55 PM

Hi tanyad, thank you for reporting this issue, you are absolutly correct about the fact that locale doesnt seem to persist and we are actively investigating the root cause here and will work on a fix. 


I will follow up once I have more information about resolution. 



by tanyad Regular Visitor
on ‎11-12-2018 01:07 PM

@sagivh- Many thanks.  Just did some more testing and you might like to know that there is an issue when resaving - and i think this also causes it to revert back.  Quick steps.  1) Open Entity and set local. 2)Click [Done] 3) Click [Save] Dataflow 4) Re open Entity change something like format a column 5) Click [Done] 6) Click [Save] dataflow - it then errors with this    2018-11-12_21-03-40.png


by tanyad Regular Visitor
on ‎11-19-2018 02:54 AM

@sagivh - Hi any news on this issue being fixed?

by sagivh Frequent Visitor
on ‎11-19-2018 03:06 AM

Hi tanyad, we are still working on a fix and I dont have a concrete timeframe. I'll make sure to inform you once we actually deploy the fix.