Capture last change sensor update

Configuration
1

I have a sensor that displays a date when I last exercised. so it changes every time Ive exercised. output is for example 2023-08-11 20:03:29.

I want to put the moment of change in an automation, is that possible? So capture the last time the sensor changes

2

It is already available as a property (not attribute) of the sensor:

"{{ states.sensor.your_sensor_here.last_changed }}"
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