How to disable smartd

So I have a Mac which I installed smartontools, to see my smart data. And I thought that smartd would be helpful in doing short tests on my Mac SSD But I found out via Google that smartd only runs tests during 03:00am and no way my Mac will be powered on at that time. I understand that smartd is for servers which run 24/7 so there is no use of smartd. So I would like to disable it and write my own simple bash script which runs short tests on my Mac SSD. So is there any way I can disable smartd or remove it without affecting smartctl?