I do a little WordPress work on my site using my Mac. After upgrading to Snow Leopard I started getting errors like this:
Warning: strtotime(): It is not safe to rely on the system’s timezone settings. You are required to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected ‘America/New_York’ for ‘EDT/-4.0/DST’ instead in /Users/scott/Sites/usic.net/wp-includes/functions.php on line 35
I found this post that talks about setting the time zone in WordPress. Unfortunately, just setting a default time zone didn’t fix the problem (it’s still a good idea though).
The solution was to set a default time zone in my /etc/php.ini file:
date.timezone = "America/Boise"
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You might not have a php.ini file in /etc. If you don't then look for a file called 'php.ini.default' and copy that to php.ini.