Date fields not reflecting true local time

[shanfaulks]

I have 2 date fields in a report that work perfectly in desktop version, but incorrectly in Service version. 

One date calulation field represents the date "yesterday", and the other shows the date the data was last refreshed. 

I have 2 date fields:

1) DAX formula: 
= DATEADD(LASTDATE('Calendar'[Date]),-1,DAY)
2) built into power query

= DateTime.FixedLocalNow()

Both fields work to an extent, but in the pubished version of the report, the times/dates don't reflect NZT (which is my time zone). It defaults to UTC which is not correct.

My browser and all other time functions on my laptop all work correctly. 

My PC is set to my timezone, my MS office and profile are all set to NZ timezone and lanuage. At a loss to find out why this isn't working properly! 

Help would be appreciated. 

[shanfaulks]

Thank you, the links you provided weren't useful for this issue as I had already tried all the functions mentioned. But thanks anyway. 

[collinq · Accepted solution]

Hey @shanfaulks ,

A couple of reasons for this can be the date/time of the data itself (ie. you are in NZ, but the data is in the US, so it looks "off") or, your tenant could be set to UTC time and not your time in the service.  And, therefore, "Now()" can be interpreted as UTC time and/or as the time of your tenant, and not where you are.....

And, displaying the time SHOULD be in your own time based on your computer but I know that doesn't always work, particularly within the visuals themselves.  I have three links that might be of assistance:.

1. THis is the M code page for the DateTimeZone functions: DateTimeZone functions - PowerQuery M | Microsoft Learn

2. This is another community request over the same idea: Solved: Convert UTC to client time zones? - Microsoft Power BI Community

3. This is a blog about the topic: Dynamic time zone conversion using Power BI – The White Pages (tygraph.com)