PHP date_default_timezone_set（）导致非洲/拉各斯的时间不正确

Question

My server is Central Time and I'm trying to display an event for Abuja, Nigeria (displaying in their time).

My PHP code for displaying the correct time zones is as follows...

// since our server is central time we have to make the server think it's in a different time zone or it will display all times using the central offset
// date_default_timezone_set("bleh") is used to do this
// php supported time zones (http://us3.php.net/manual/en/timezones.php)
// you have to specify every time zone (even odd-balls like Napal) if you want every time zone to work correctly
if ($pubDatetimezone == "PST" || $pubDatetimezone == "PDT") date_default_timezone_set("America/Los_Angeles");
if ($pubDatetimezone == "MST" || $pubDatetimezone == "MDT") date_default_timezone_set("America/Denver");
if ($pubDatetimezone == "CST" || $pubDatetimezone == "CDT") date_default_timezone_set("America/Chicago");
if ($pubDatetimezone == "EST" || $pubDatetimezone == "EDT") date_default_timezone_set("America/Montreal");
// shows the incorrect time but the correct time zone (WAT)
if ($pubDatetimezone == "WAT") date_default_timezone_set("Africa/Lagos");
// displays the correct time but the incorrect time zone (AZOT)
// if ($pubDatetimezone == "WAT") date_default_timezone_set("Atlantic/Azores");

The American time zones work just fine, but the African time zone is displaying incorrectly. The date/time should show Friday, November 01, 2013 @ 6:00pm WAT but it is showing Friday, November 01, 2013 @ 8:00pm WAT .

My server time is decently correct (within a few minutes of the correct time and the correct time zone). The XML data that I'm importing has the correct date/time <pubDate>Fri, 01 Nov 2013 18:00:00 WAT</pubDate> . It could be worth noting that I'm using a Windows server, IIS 7, and PHP 5.3.10.

WAT doesn't use daylight saving time. Even if it did, then the time would only be 1 hour off and it's 2 hours off. We ended up having to put incorrect times in our XML so that PHP would display correct times.

Any ideas as to what's wrong?

Answer 1

The timezones database in PHP got deprecated. The best thing you can do is upgrade PHP to the latest 5.3. Apart from up-to-date timezones you'll get all the latest security fixes - the version 5.3.10 is pretty old and there were quite a few security issues fixed.

Unfortunately it's impossible to update only timezones db in PHP on Windows, as it's compiled into the binary files.