Local computer time

[icekat83]

Hey,

 

I'm trying to code a page which is supposed to bring up the time of a person's computer. Is this possible without majorly complicated coding? I'm good with GMT offsets and stuff but I don't know how to get the time of a person's computer. I don't want other stuff, just the time so I can edit the time based on where they are.

 

I don't know if I'm making sense so here's an example...

 

If someone does a forum post at 2pm Sydney time but it's 5pm Perth time. How can I make it so that someone in Perth sees 5pm but someone in Sydney sees 2pm...without them manually telling me their timezone? 

 

I read about using IP addresses but don't know much (Ok anything) about this , any hints or good sites to view would be appreciated? Or the answer if it's not too complex. 

 

Preferably I'd like to get the time in the 11 digit "time()" format so I can use it in tables and translate it with an existing function.

 

IceKat

[yaMz]

You could use javascript to easily get the users time, and store it as $_SESSION['time']. As long as you don't have a problem with users being able to change their time... or if their time is incorrect then their true location wouldn't match your function's location for them.

 

[kenrbnsn]

PHP knows about the time on the server, Javascript knows the time on the users computer. If you really need the time on the local computer, you would need to send it to PHP via AJAX.

 

Ken

[icekat83]

Yes but JavaScript can be disabled. How do website statistics robots (like google analytics) do it? They get location and stuff which is basically what I need.

 

I don't want to invade privacy or anything, just be able to automatically alter times for web viewers.

[yaMz]

<noscript>Please enable Javascript</noscript>

[yaMz]

Better yet,

<noscript><?php echo "Server Time: ".date(format); ?></noscript>

 

Edit, I have to admit I haven't been fair to you. You mentioned google analytics, which made me think duh -> ip -> trace - > timezone.

 

$region = geoip_region_by_name($_SERVER['REMOTE_ADDR']);
$zone = geoip_time_zone_by_country_and_region($region['country_code'],$region['region']);

 

However this method is not as accurate as you'd like, with javascript->ajax->php more accurate, and being the most accurate: asking the user.