let talkedRecently = 0;
let talkedRecentlyDAYS = 0;
let talkedRecentlyHOURS = 0;
let talkedRecentlyMINUTES = 0;
let talkedRecentlySECUNDES = 0;

if(message.content.startsWith(prefix + "day")) {
        if (talkedRecently > 0) {
               message.channel.send(`Вы уже использовали эту команду. Повторите через ${Math.floor(talkedRecentlyDAYS)} дней / ${Math.floor(talkedRecentlyHOURS)} часов / ${Math.floor(talkedRecentlyMINUTES)} минут / ${talkedRecentlySECUNDES} секунд.`)
        } else {
                  message.channel.send("Успешно!")
                  talkedRecently = 86400000;
                  talkedRecentlyDAYS = talkedRecently/86400000;
                  let time = setInterval(() => {
                        if (talkedRecently <= 0) { clearInterval(time); return; }
                        talkedRecentlySECUNDES -= 1;
                        if (talkedRecentlySECUNDES < 0) { talkedRecentlySECUNDES = 59; talkedRecentlyMINUTES -= 1; }
                        if (talkedRecentlyMINUTES < 0) { talkedRecentlyMINUTES = 59; talkedRecentlyHOURS -= 1; }
                        if (talkedRecentlyHOURS < 0) { talkedRecentlyHOURS = 23; talkedRecentlyDAYS -= 1; }
                        talkedRecently -= 1000;
                  }, 1000);
        }
}