Cookies and Time Zones [Resolved]

I'm wanting to create a Cookie that only lasts a few hours. I was using this:

PHP Code:

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setcookie("CookieName", "Data", time()+60*60*(3+8), "/", ".Domain.com", 0); 


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The +8 is because my server is based in the PST timezone, however is there a better way so I can create the cookie's time based on the time the browser is using.

The cookie will last for three hours...regardless of timezone.

Before I used the +8 and used:

PHP Code:

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setcookie("CookieName", "Data", time()+60*60*3, "/", ".Domain.com", 0); 


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it was disapearing straight away because the expiry date was past already. on my Machine (running at GMT). Hang on I'll check this again just to make sure.....

Since a cookie is set by the browser on the machine, I'm sure it would automatically set the cookie in the computer's own timezone, unless PHP sends a timestamp for it to expire, rather than number of hours, minutes, etc.

Yeah your right, dunno what I must av done wrong before :confused:.