Timer problem

I have made 3 timers. 2 with help from the helpers and one in configuration.yaml.

All 3 works but if i enter 5 seconds the timer remains from 1.20 seconds.
When it comes to 1.15 seconds its ended. So it remains 5 seconds only the output is wrong.

it always put 1.15 above the setted time.

Who knows the hack for this:)

Greetings Justin