Thanks for that Stephanie.  I get that, but that's not what I was actually asking.

Each time I want to enter a "Single Time Activity", the date shown in the date field is the last date that was entered.  That is, for a time activity undertaken the previous week for example.  In the help section, a note states that "the current date is automatically entered on the date field".

This is not my experience.  The date is not automatically changed to the current date; which would be far more useful for me when entering times each day as I currently do.