JavaScript Time Teller

function telltime() {
    var hour = new Date().getHours(),
        min = new Date().getMinutes(),
        sec = new Date().getSeconds(),
        month = new Date().getMonth() + 1,
        day = new Date().getDate(),
        year = new Date().getFullYear(),
        ampm;

    switch (new Date().getDay()) {
        case 0:
            today = "Sunday";
            break;
        case 1:
            today = "Monday";
            break;
        case 2:
            today = "Tuesday";
            break;
        case 3:
            today = "Wednesday";
            break;
        case 4:
            today = "Thursday";
            break;
        case 5:
            today = "Friday";
            break;
        case 6:
            today = "Saturday";
    }

    if (sec < 10) sec = `0${sec}`
    if (min < 10) min = `0${min}`
    if (hour > 12) {
        ampm = 'PM';
    } else {
        ampm = 'AM';
    }
    if (hour > 12) hour -= 12

    alert(`The current time is:\n\n${month}/${day}/${year}\n${today} ${day}, ${year}\n${hour}:${min}:${sec} ${ampm} ${new Date().toString().slice(35,new Date().toString().length - 1)}`);
}
telltime();