Requesting the time from a time server is simple. First, you provide the time server from which you want to request the time.
<?php
$server = new Zend_TimeSync('0.pool.ntp.org');
print $server->getDate()->getIso();
So what is happening in the background of Zend_TimeSync? First
the syntax of the time server is checked. In our example,
'0.pool.ntp.org' is checked and recognised as a possible address
for a time server. Then when calling getDate() the actual set
time server is requested and it will return its own time.
Zend_TimeSync then calculates the difference to the actual time
of the server running the script and returns a Zend_Date object
with the correct time.
For details about Zend_Date and its methods see the Zend_Date
documentation.