I can find many sources stating, that you can declare the interval of schedules like: 1d, 6h, 30d, ...
But it seems like you can enter the interval in webfig and android app just in the format: 00:00:00
If you enter a interval like 6h you can't save, a simple alert-message appears saying: "Invalid value in Interval". Good job - classic error-message by a (bad) programmer.
And even for that format I can only guess that it is: hh:mm:ss
BUT on the terminal - thats the funny part now - I am able to create new schedules with e.g. "interval=6h".
That's kind of inconsistent. ("kind of" is a pure understatement here)
Are there ANY offical docs for the scheduler?