How to get Time Zone through IP Address in PHP [du

Question

This question already has answers here:

How to find timezone ID from IP address/country name in PHP? (4 answers)

Closed 2 years ago.

I want to get time zone through an IP Address in PHP. Actually, I have an application which will run at the client machine. I have the IP address of the client machine. But I am not able to get the time zone for each client machine.

Answer 1

Check out the Maxmind GeoLite2 database. It contains details about the continent/country/city and lat/lon for most IP addresses including the time_zone as you can see below.

I describe how to compile the PHP extension, and how to use the mmdb databases in PHP here:

Intro to Maxmind GeoLite2 with Kohana PHP

Answer 2

It's not straight forward but I get the time including daylight saving offset from 2 api calls using jquery and php. All of it could be done in PHP quite easily with a bit of adaptation. I'm sure this could be laid out differently too but I just grabbed it from existing code which suited my needs at the time.

Jquery/php:

function get_user_time(){
    var server_time = <? echo time(); ?>; //accuracy is not important it's just to let google know the time of year for daylight savings time
    $.ajax({
        url: "locate.php",
        dataType: "json",
        success: function(user_location) {
            if(user_location.statusCode=="OK"){
                $.ajax({
                    url: "https://maps.googleapis.com/maps/api/timezone/json?location="+user_location.latitude+","+user_location.longitude+"&timestamp="+server_time+"&sensor=false",
                    dataType: "json",
                    success: function(user_time) {
                        if(user_time.statusCode=="error"){
                            //handle error
                        }else{
                            user_time.rawOffset /= 3600;
                            user_time.dstOffset /= 3600;
                            user_real_offset = user_time.rawOffset+user_time.dstOffset+user_time.utc;
                            //do something with user_real_offset
                        }
                    }
                });
            }
        }
    });
}

locate.php

function get_client_ip() {
    $ipaddress = '';
    if ($_SERVER['HTTP_CLIENT_IP'])
        $ipaddress = $_SERVER['HTTP_CLIENT_IP'];
    else if($_SERVER['HTTP_X_FORWARDED_FOR'])
        $ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
    else if($_SERVER['HTTP_X_FORWARDED'])
        $ipaddress = $_SERVER['HTTP_X_FORWARDED'];
    else if($_SERVER['HTTP_FORWARDED_FOR'])
        $ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];
    else if($_SERVER['HTTP_FORWARDED'])
        $ipaddress = $_SERVER['HTTP_FORWARDED'];
    else if($_SERVER['REMOTE_ADDR'])
        $ipaddress = $_SERVER['REMOTE_ADDR'];
    else
        $ipaddress = 'UNKNOWN';

    return $ipaddress;
}
$location = file_get_contents('http://api.ipinfodb.com/v3/ip-city/?key=xxxxxxxxx&ip='.get_client_ip().'&format=json');
$location = json_decode($location,true);
if(is_array($location)){
    date_default_timezone_set('UTC');
    $location['utc'] = time();
    echo json_encode($location);
}else{
    echo '{"statusCode":"error"}';
}

Register for a free key here: http://ipinfodb.com/register.php (no limits but queued if more than 1 request per second)

Answer 3

Here's an example using a location API that maps IP address to timezone, e.g. send a request to https://ipapi.co/<IP-Address>/timezone/ & get back timezone for that IP address.

PHP Code

file_get_contents('https://ipapi.co/1.2.3.4/timezone/');

Accuracy is not 100% as others have said.