Time of Day Routing

// Description
// Time of Day Routing

// Add moment-timezone 0.5.31 as a dependency under
// Functions Settings, Dependencies
const moment = require('moment-timezone');

exports.handler = function (context, event, callback) {
  const twiml = new Twilio.twiml.VoiceResponse();

  function businessHours() {
    // Set current timezone to US East Coast
    // others: https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
    const now = moment().tz('America/New_York');
    const weekday = now.isoWeekday();
    const hour = now.hour();

    // Weekday check for M-F using moment().isoWeekday()
    // Monday = 1, Tuesday = 2 ... Sunday = 7
    // and work hours check for 9 am to 5pm (17:00 in 24-hour time)
    return weekday <= 5 && hour >= 9 && hour < 17;
  }

  const isOpen = businessHours();

  twiml.say(`Business is ${isOpen ? 'Open' : 'Closed'}`);

  return callback(null, twiml);
};