/1 vs timer

I am updating a clock with precision to seconds, and currently I use this to trigger the update action:

trigger: time_pattern
seconds: /1

At the same time a timer is running, and intuitively would make sense to use the timer change as the trigger.

So, my questions are two:

  1. Is there any way to access the timer change event?
  2. If that were possible, which option would be more efficient?
  3. Is there another way to synchronise a timer/time to a clock?

Kind of philosophical, but I really dislike the watchdog cronjob once per second.

I have also been thinking about this. I have two automations triggered each second, to send a time value to my Awtrix 3 pixel display, with countdown until the next boat leaves (I live on an island). I need the precision in seconds.

I also want to know the answer to your two (actually three :slight_smile: ) questions.