Repeating four hour countdown

I run a discord for a Dayz server that resets every four hours I am trying to get a four hour countdown that restarts when it hits zero so that the people in the server can tell when the reset is about to happen I have no money as I am a broke teen all the existing bots I can find make me come back and reset it every four hours which is not feasible when I have people from all over the world trying to play and I can’t reset it in my sleep please help me lol even if it’s an existing spot that you know of please let me know