* listen to config changes for possible DST changes * Add test * check tz actually changed * Update tests/components/utility_meter/test_sensor.py Co-authored-by: Abílio Costa <abmantis@users.noreply.github.com> * Update tests/components/utility_meter/test_sensor.py Co-authored-by: Abílio Costa <abmantis@users.noreply.github.com> * Clean up comment --------- Co-authored-by: Abílio Costa <abmantis@users.noreply.github.com> Co-authored-by: Martin Hjelmare <marhje52@gmail.com>