Clock

function clock(input) {

    for (let hours = 0; hours < 24; hours++) {

        for (let minutes = 0; minutes < 60; minutes++) {
          /*  if (minutes < 10) {
                console.log(hours + "0:" + minutes);
            } else {
                console.log(hours + ":" + minutes);
            }
            */
            console.log(hours + ":" + minutes);
        }
    }

}

clock()