Zend Framework

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.7.4
• Fix Version/s: 1.8.0
• Component/s: Zend_Date
• Labels:

  None

I have found a bug in the getGmtOffset() method of Zend_Date.

I try to get the current (2009/02/15) GMT offset to New Zealand timezone using the following code:

$date = new Zend_Date();
$date->setTimezone('Pacific/Auckland');
$offset = $date->getGmtOffset();

The offset variable contains now -43200 seconds (or -12 hours).

Trying to get the offset using plain PHP:

date_default_timezone_set('Pacific/Auckland');
$localtime = localtime(time(), true);
$offset = mktime($localtime['tm_hour'], $localtime['tm_min'], $localtime['tm_sec'], $localtime['tm_mon'] + 1, $localtime['tm_mday'], $localtime['tm_year'] + 1900) - gmmktime($localtime['tm_hour'], $localtime['tm_min'], $localtime['tm_sec'], $localtime['tm_mon'] + 1, $localtime['tm_mday'], $localtime['tm_year'] + 1900);

The offset variable contains now 46800 seconds (or -13 hours). This version pays attention to the summer/wintertime while the getGmtOffset() method always calculates a fixed offset. I think Zend_Date's method should do the same.

• Assignee:

  Thomas Weidner

  Reporter:

  Marco Baumgartl

• Created:

  15/Feb/09 4:39 AM

  Updated:

  19/Feb/09 1:31 PM

  Resolved:

  19/Feb/09 1:31 PM