How to turn off notifications for shabbat?

I’m new to reddit and very bad at technology, so I was hoping somebody might be able to help me out with this. I want to be able to go on do not disturb for shabbat, but I don’t know how to do that on reddit. On discord I put myself on do not disturb and put a custom status that says “offline for shabbat” but I haven’t found a way to do that here. I saw that there’s an option to change my online status so people won’t see if I’m online, but I don’t know of any way to put it to do not disturb. Does anybody know how to do that? I’m on mobile btw