la-cosa-nostra/source/systems/commands_unaffiliated/ping.js

A Mafia bot designed to run in Discord - beware the traitors and the lies!

module.exports = function (message, params, config) {
  var timestamp = new Date(message.createdTimestamp);
  var now = new Date();

  var delta = now.getTime() - timestamp.getTime();

  message.channel.send(":ping_pong: Pong! (" + delta + " ms)");
};