PHP Max runtime limits in WP existing? Script stops after 9 minutes

Hello,

are in WP some runtime limits for PHP Script Execution existing?

We execute a function with wp_cron, once a week. The script has a loop with a sleep to make a little pause. All is working fine, but the loop and the function is stopping after 9 minutes without error. Debug Log is on, but no error occur.

I changed our sleeping time in the loop, and when I make it small, we can execute more loop iterations. But it stop every time between 8-9 minutes.

out php.ini has set:
max_execution_time = 1200
So should run 20 minutes.

I tried also settings up “set_time_limit(3000);” every time in the loop, but makes no difference.

Any Idea for WP See tings which influence this?
Or perhaps some other settings in php or some where else I can check?

Host is “hosteurope”

Thanks a lot!
Manni