this post was submitted on 30 Sep 2025
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Save stop time to a helper. Helper state persists through automation restarts, ha restarts, and OS restarts.
Check the helper every minute. Or, just run until the stop time is reached, and create an automation to check and restart the timer when HA restarts.
This is the way. It’s a little annoying, but much more reliable. If you set an actual date and time, you can also ensure an old timer kicks off if HA was down for more than the minute it needed to hit.