You need to take the easy chart out of “Historical” mode and put it in “Manual” mode. Manual mode means that you are controlling the date range by yourself by setting the Start Date and End Date properties, probably using property bindings.
If you really just want to display from 7AM to 11PM of the current day, use expression property bindings like this:
auto axis positioning has nothing to do with that - it is to automatically balance multiple Y axes onto both the left and right sides of the chart.
What you’re seeing is because you have no data past the current time - the chart’s x axis automatically scales to only the range where there is useful data. This is called “AutoRange”, and it is enabled when you’re in Historical or Manual mode. I’ll add a feature request to add an option to turn off x-axis auto range.