---
layout: page
title: "JavaScript gettimeofday function"
comments: true
sharing: true
footer: true
alias:
- /functions/view/gettimeofday:778
- /functions/view/gettimeofday
- /functions/view/778
- /functions/gettimeofday:778
- /functions/778
---
<!-- Generated by Rakefile:build -->
A JavaScript equivalent of PHP's gettimeofday

{% codeblock datetime/gettimeofday.js lang:js https://raw.github.com/kvz/phpjs/master/functions/datetime/gettimeofday.js raw on github %}
function gettimeofday (return_float) {
  // From: http://phpjs.org/functions
  // + original by: Brett Zamir (http://brett-zamir.me)
  // +      derived from: Josh Fraser (http://onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/)
  // +         parts by: Breaking Par Consulting Inc (http://www.breakingpar.com/bkp/home.nsf/0/87256B280015193F87256CFB006C45F7)
  // +  revised by: Theriault
  // *   example 1: gettimeofday();
  // *   returns 1: {sec: 12, usec: 153000, minuteswest: -480, dsttime: 0}
  // *   example 1: gettimeofday(true);
  // *   returns 1: 1238748978.49
  var t = new Date(),
    y = 0;

  if (return_float) {
    return t.getTime() / 1000;
  }

  y = t.getFullYear(); // Store current year.
  return {
    sec: t.getUTCSeconds(),
    usec: t.getUTCMilliseconds() * 1000,
    minuteswest: t.getTimezoneOffset(),
    // Compare Jan 1 minus Jan 1 UTC to Jul 1 minus Jul 1 UTC to see if DST is observed.
    dsttime: 0 + (((new Date(y, 0)) - Date.UTC(y, 0)) !== ((new Date(y, 6)) - Date.UTC(y, 6)))
  };
}
{% endcodeblock %}

 - [Raw function on GitHub](https://github.com/kvz/phpjs/blob/master/functions/datetime/gettimeofday.js)

Please note that php.js uses JavaScript objects as substitutes for PHP arrays, they are 
the closest match to this hashtable-like data structure. 

Please also note that php.js offers community built functions and goes by the 
[McDonald's Theory](https://medium.com/what-i-learned-building/9216e1c9da7d). We'll put online 
functions that are far from perfect, in the hopes to spark better contributions. 
Do you have one? Then please just: 

 - [Edit on GitHub](https://github.com/kvz/phpjs/edit/master/functions/datetime/gettimeofday.js)

### Example 1
This code
{% codeblock lang:js example %}
gettimeofday();
gettimeofday(true);
{% endcodeblock %}

Should return
{% codeblock lang:js returns %}
{sec: 12, usec: 153000, minuteswest: -480, dsttime: 0}
1238748978.49
{% endcodeblock %}


### Other PHP functions in the datetime extension
{% render_partial _includes/custom/datetime.html %}