How to convert server time to local time in Laravel?

I found a solution to convert time to local time by using session. The current time zone offset will store on session to calculate users time. Create a jquery post function to post users timezone offset to session. This is my code,

default.blade.php

@if($current_time_zone=Session::get('current_time_zone'))@endif
<input type="hidden" id="hd_current_time_zone" value="{{{$current_time_zone}}}">
// For assigning session value to hidden field. 

<script type="text/javascript">
  $(document).ready(function(){
      if($('#hd_current_time_zone').val() ==""){ // Check for hidden field is empty. if is it empty only execute the post function
          var current_date = new Date();
          curent_zone = -current_date.getTimezoneOffset() * 60;
          var token = "{{csrf_token()}}";
          $.ajax({
            method: "POST",
            url: "{{URL::to('ajax/set_current_time_zone/')}}",
            data: {  '_token':token, curent_zone: curent_zone } 
          }).done(function( data ){
        });   
      }       
});

routes.php

Route::post('ajax/set_current_time_zone', array('as' => 'ajaxsetcurrenttimezone','uses' => 'HomeController@setCurrentTimeZone'));

HomeController.php

public function setCurrentTimeZone(){ //To set the current timezone offset in session
    $input = Input::all();
    if(!empty($input)){
        $current_time_zone = Input::get('curent_zone');
        Session::put('current_time_zone',  $current_time_zone);
    }
}

Helpers/helper.php

function niceShort($attr) {
    if(Session::has('current_time_zone')){
       $current_time_zone = Session::get('current_time_zone');
       $utc = strtotime($attr)-date('Z'); // Convert the time zone to GMT 0. If the server time is what ever no problem.

       $attr = $utc+$current_time_zone; // Convert the time to local time
       $attr = date("Y-m-d H:i:s", $attr);
    }
    return attr;
}

index.blade.php

{{ niceShort($posts->updated_at) }}

Now we can print the time in clients time zone. The time zone setting code run only when the session empty.

You can do this by using javascript. Use following libraries:

1. moment.min.js (http://momentjs.com/downloads/moment.js)
2. moment-timezone-with-data.js ()
3. jstz.min.js (https://bitbucket.org/pellepim/jstimezonedetect)

Here is the code :

var update_at = '<?php echo $posts->updated_at;?>'; //set js variable for updated_at
var serverTimezone = 'YOUR SERVER TIME ZONE'; //set js variable for server timezone
var momentJsTimeObj = moment.tz(update_at, serverTimezone); //create moment js time object for server time
var localTimeZone = jstz.determine(); //this will fetch user's timezone
var localTime = momentJsTimeObj.clone().tz(localTimeZone.name()).format(); //convert server time to local time of user

Now you can display local time through js

Try this method, I think this is what you want:

$localTime = $object->created_at->timezone($this->auth->user()->timezone);

Here, $this->auth->user()->timezone will return current user's timezone, and timezone() will convert created_at to to user's local time.

If you want to get all visitors timezone (not just logged in users), you can you package for Laravel similar to laravel-geoip. It will generate $visitor['timezone'] for you which you can use like this:

$localTime = $object->created_at->timezone($visitor['timezone']);