current_date.js

function getCurrentDateString() {
    // JavaScript Date API does not return zero-padded date strings, so we need this utility
    var pad = function(number) {
      if (number < 10) {
        return '0' + number;
      }
      return number;
    };
    // get the current day and format it as YYYY-MM-DD-HH
    var date = new Date(),
        dateString = date.getUTCFullYear() +
                        '-' + pad(date.getUTCMonth() + 1) +
                        '-' + pad(date.getUTCDate()) +
                        '-' + pad(date.getUTCHours());
    return dateString;
}