好吧,我有以下代碼

$from = "Asia/Manila";

$to = "UTC";

$org_time = new DateTime("2012-05-15 10:50:00");

$org_time = $org_time->format("Y-m-d H:i:s");

$conv_time = NULL;

$userTimezone = new DateTimeZone($from);

$gmtTimezone = new DateTimeZone($to);

$myDateTime = new DateTime($org_time, $gmtTimezone);

$offset = $userTimezone->getOffset($myDateTime);

$conv_time = date('Y-m-d H:i:s', $myDateTime->format('U') + $offset);

echo $conv_time;

使用此代碼我想將2012-05-15 10:50:00轉換為UTC和-8時區(我使用美國/溫哥華)但它給了我一個奇怪的結果

06001

而對于美國/溫哥華

Asia/Manila > America/Vancouver

2012-05-16 02:50:00 = the correct is 2012-05-14 19:50

哪里出錯了？