How to correctly implement the task scheduler?

Question

Node.js

There is a certain array I would like to make a function scheduler that will call it on a specific day present in the Days array, the ideas were to simply calculate the date closest to the current one and create a timeout for the required number of ms, but I think that there are more correct solutions similar task
let Days = [ 1, 7, 15, 28 ];

Answer 1

cron and backend)