note 105705 added to datetimezone.getoffset

A common problem is to format dates and times for XML documents. The XML standard is defined as follows: " To specify a time zone, you can either enter a dateTime in UTC time by adding a "Z" behind the time - like this: <startdate>2002-05-30T09:30:10Z</startdate> or you can specify an offset from the UTC time by adding a positive or negative time behind the time - like this: <startdate>2002-05-30T09:30:10-06:00</startdate> " Here is a possible solution in PHP: <?php if(date_default_timezone_get() == 'UTC') { $offsetString = 'Z'; // No need to calculate offset, as default timezone is already UTC } else { $phpTime = '2002-05-30 09:30:10'; $millis = strtotime($phpTime); // Convert time to milliseconds since 1970, using default timezone $timezone = new DateTimeZone(date_default_timezone_get()); // Get default system timezone to create a new DateTimeZone object $offset = $timezone->getOffset(new DateTime($phpTime)); // Offset in seconds to UTC $offsetHours = round(abs($offset)/3600); $offsetMinutes = round((abs($offset) - $offsetHours * 3600) / 60); $offsetString = ($offset < 0 ? '-' : '+') . ($offsetHours < 10 ? '0' : '') . $offsetHours . ':' . ($offsetMinutes < 10 ? '0' : '') . $offsetMinutes; } echo('<startdate>' . date('Y-m-d\TH:i:s', $millis) . $offsetString . '</startdate>'); // This is the correct XML format ---- Server IP: 69.147.83.197 Probable Submitter: 88.217.22.140 ---- Manual Page -- http://www.php.net/manual/en/datetimezone.getoffset.php Edit -- https://master.php.net/note/edit/105705 Del: integrated -- https://master.php.net/note/delete/105705/integrated Del: useless -- https://master.php.net/note/delete/105705/useless Del: bad code -- https://master.php.net/note/delete/105705/bad+code Del: spam -- https://master.php.net/note/delete/105705/spam Del: non-english -- https://master.php.net/note/delete/105705/non-english Del: in docs -- https://master.php.net/note/delete/105705/in+docs Del: other reasons-- https://master.php.net/note/delete/105705 Reject -- https://master.php.net/note/reject/105705 Search -- https://master.php.net/manage/user-notes.php