RE: [PHP] Date weirdness

> I think I am losing my mind. I have some time zone converting code, and I
> just don't understand what I am seeing. Also my system seems to return the
> wrong time after I do some date operations on unrelated objects.
> 
> This is from a machine that is in eastern time. I want to convert to, for
> example central time:
> 
> $ndate = new Date(date("Y-m-d H:i:s"));
> echo $ndate->format("%Y-%m-%d %H:%M:%S");
> 2013-03-28 15:35:07  <- this is the correct time
> 
> $ndate->setTZbyID("EDT");
> echo $ndate->format("%Y-%m-%d %H:%M:%S");
> 2013-03-28 15:35:07 <- still correct
> 
> $ndate->convertTZbyID("US/Central");
> echo $ndate->format("%Y-%m-%d %H:%M:%S");
> 2013-03-28 10:35:07 <- this is wrong it should be 14:35:07
> 
> $xdate = new Date(date("Y-m-d H:i:s"));
> echo $xdate->format("%Y-%m-%d %H:%M:%S");
> 2013-03-28 19:35:07 <- HUH? This is wrong - should be 15:35:07
> 
> What in the world is going on here?
> 

I found this function a while back when I was converting UTC to EST... simple task I know, but still...

( I am sorry to whomever wrote this, I didn't keep the source where I found it )

function convert_time_zone($date_time, $from_tz = 'UTC', $to_tz = 'America/Toronto')
{
	$time_object = new DateTime($date_time, new DateTimeZone($from_tz));
	$time_object->setTimezone(new DateTimeZone($to_tz));
	return $time_object->format('Y-m-d H:i:s');
}

Maybe this can help you?

Steve