Arena Time

[devdash]

how can i setup Arena time
i knew its from SMC>SR_Scheduler>BATTLE_ARENA
but i don't know how to make it

so lets say i want it everyday 09:00 PM register time
start after 20 minutes at 09:20 PM
end after 15 minutes at 09:35 PM

so how can i do that ? please give me an example for this so i can learn

thanks in advance