The output speed doesn't depend on the day of the week, it depends only on the workload of the mempool. Rahakott automatically calculates the commission in such a way that the average transfer time takes about 30 minutes. But time can increase if the number of transactions on the network has increased dramatically (almost immediately after the transfer, for example, the network was specifically spammed with transactions or the number of transactions has increased due to mass network transfers (for example, the bitcoin rate has increased sharply and some people decided to sell while others buy at peak prices because they think that the price will rise even higher)).