Steps to reproduce the issue

$tz = "Asia/Kolkata";
$date = JFactory::getDate('now',$tz);
print_r($date);

Expected result

  JDate Object
  (
    [tz:protected] => DateTimeZone Object
    (
        [timezone_type] => 3
        [timezone] => Asia/Kolkata
    )

[date] => 2017-05-10 14:46:15
[timezone_type] => 3
[timezone] => Asia/Kolkata
)

Actual result

JDate Object
(
  [tz:protected] => DateTimeZone Object
    (
        [timezone_type] => 3
        [timezone] => Asia/Kolkata
    )

 [date] => 2017-05-10 08:46:15
 [timezone_type] => 3
 [timezone] => Asia/Kolkata
)

System information (as much as possible)

Additional comments

problem in JDate constructor

line no:114

  $date = parent::createFromFormat('U.u', number_format(microtime(true), 6, '.', ''), $tz)->format('Y-m-d H:i:s.u');

its return wrong