Days of the Week - does HA not know it's a Sunday?

I am using ApexCharts to record data. However, it only reports it as the date, which gets clunky. Nowhere in Home Assistant does it report that today is a Sunday. How do I get the system to tell it is a Sunday?h

To clarify the use case, I’m trying to get the graph below to list the days of the week. Additionally, nowhere in HA does it report dates with the day of the week which is vastly preferable than just the date. Is there no setting for this?

image

Since you’re using ApexCharts, it controls the formatting, not HA. The following will format the x-axis to show the days. Note that you can’t very effectively control how many intervals are listed on the x-axis, but if you’re only doing a week you shouldn’t have problems.

            apex_config:
              xaxis:
                labels:
                  format: 'ddd'