YW!
It’s a matter of how one looks at it.
This way you cannot ‘by accident’ change a 60m timer into a 60hrs timer.
OR
You can only change values within the defined timer duration.
Or it is just impossible the way the app is written.
It’s also the way one looks at it:
In this case, +30mins fastforwards the timer, -30mins rewinds the timer
This app is looking for a new developer by the way, so if you know anyone…
