Hello

Im using Zend and i have an interval date time, when i add a new interval, it shows me for some days a wrong result, for example, when using interval 9:00 PM to 12:00 PM

it shows 8:00 PM to 12:00 PM...

in some days not all days...

this is my code, whats wrong?

$chklocalStartDateTime->setTimeZone(new DateTimeZone('America/Los_Angeles'));