Edit in JSFiddle

var estimatedTime = new Date();
estimatedTime.setDate(estimatedTime.getDate() + 7);
document.getElementById("futureDate").innerHTML = 'In one week, it will be ' + estimatedTime.toDateString() + '.';

<div id="futureDate"></div>

body {
    background: #eee;
}

#futureDate {
    font-family: 'Open Sans', sans-serif;
    font-size: 14px;
    font-weight: 700;
    color: #57A1AF;
    text-align: center;
}