by Randy Thornton.
Andrea,
There is no way to change that in the User report. This is in the code for Configurable Reports block; there is no setting to change it.
The report puts the time there even if you have indicated in the custom user profile field that you want only a date and not a time.
I think this is a small bug in Configurable Reports: it should obey your setting in the custom profile so that if you ask only for date, it shows only the time and not the time.
To work around this, you could either redo the report as a SQL report (if you know SQL) and can control the formatting. Or you can save the file and remove it from the spreadsheet.