Nodejs Utililty Methods Timezone Offset Get

Date.prototype.stdTimezoneOffset = function() {
  var jan = new Date(this.getFullYear(), 0, 1);
  var jul = new Date(this.getFullYear(), 6, 1);
  return Math.max(jan.getTimezoneOffset(), jul.getTimezoneOffset());

Date.prototype.stdTimezoneOffset = function() {
    var jan = new Date(this.getFullYear(), 0, 1);
    var jul = new Date(this.getFullYear(), 6, 1);
    return Math.max(jan.getTimezoneOffset(), jul.getTimezoneOffset());
Date.prototype.dst = function() {
    return this.getTimezoneOffset() < this.stdTimezoneOffset();
function get_time_zone_offset() {
...

Date.prototype.stdTimezoneOffset = function() {
    const jan = new Date(this.getFullYear(), 0, 1);
    const jul = new Date(this.getFullYear(), 6, 1);
    return Math.max(jan.getTimezoneOffset(), jul.getTimezoneOffset());
};

Date.prototype.stdTimezoneOffset = function() {
  var jan = new Date(this.getFullYear(), 0, 1);
  var jul = new Date(this.getFullYear(), 6, 1);
  return Math.max(jan.getTimezoneOffset(), jul.getTimezoneOffset());

var https = require('https'),
  env = require('dotenv').config();
var wakatimeAPI = process.env.WAKATIME_SECRET_KEY,
  encodedAPI = new Buffer(wakatimeAPI).toString('base64');
Date.prototype.stdTimezoneOffset = function() {
    var jan = new Date(this.getFullYear(), 0, 1);
    var jul = new Date(this.getFullYear(), 6, 1);
    return Math.max(jan.getTimezoneOffset(), jul.getTimezoneOffset());
Date.prototype.dst = function() {
    return this.getTimezoneOffset() < this.stdTimezoneOffset();
var formatDate = function(timestamp){
  var pad = function(digit){
    digit = digit+"";
    if(digit.length < 2){
      digit = '0'+digit;
    return digit
  };
  var d = new Date(timestamp),
    year = parseInt(d.getFullYear(),10),
    month = pad(parseInt(d.getMonth(),10)+1),
    date = pad(parseInt(d.getDate(),10));
  return year+'-'+month+'-'+date;
};