How do I get a (preferably bar) graph to show the times of an event which varies each day. Just interested in the hour and minute, not day or seconds.
I have:
{{states.binary_sensor.sun_off_balcony_at.last_changed.timestamp()|timestamp_custom(‘%H:%M’,true)}}
A possible way could be using a logbook card which shows a list of values. But you will have to create a template sensor for that “formatted last_changed” value.
Also, you can try a custom logbook-card which can show attributes like “last_changed” (and even with a desired format, although not sure if your particular format is supported).