Try this: DATEPART('minute', NOW())+ DATEPART('hour', NOW())
Or just create a calculated field using: NOW()
And then drill down to hour and minute.
If this does not get your desired outcome, could you post a sample workbook that you are working on?
Hope that helps,
the time stays the same unless close the book and reopen to get updated , so wondering any way to go around it.
You could always use F5 to refresh the page.
I found this, but have never used it so I cannot vouch for it: Auto Refreshing an Embedded View Using Meta Refresh | Tableau Software
And here is a similar thread: Re: Automatic Data Refresh
Hope that helps!