PHP - Hours difference is not accurate using DateTime object - php

Question

I am trying to get difference in hours between two dates using PHP DateTime object but the result is not accurate. One date is the current date time and second is the event date which comes from database. I don't understand on what logic the hours difference is calculated.
Here's my code:
<?php
$date1 = new DateTime();
$date2 = new DateTime("2018-09-04 20:37:06");
$interval = $date2->diff($date1);
echo "<pre>";
print_r($interval);
echo "</pre>";
echo $interval->format('%a Day and %h hours');
?>
Output:
DateInterval Object
(
[y] => 0
[m] => 0
[d] => 0
[h] => 3
[i] => 14
[s] => 13
[weekday] => 0
[weekday_behavior] => 0
[first_last_day_of] => 0
[invert] => 1
[days] => 0
[special_type] => 0
[special_amount] => 0
[have_weekday_relative] => 0
[have_special_relative] => 0
)
0 Day and 3 hours
The script is executed at 08:53 PM (India) i.e. 20:53:00 but the difference is 3 hours. Don't know why?

Answer 1

For Indian time this should help :-
<?php
$timezone = new DateTimeZone('Asia/Kolkata');
$date1 = new DateTime('now', $timezone);
$date2 = new DateTime("2018-09-04 20:37:06", $timezone);
$interval = $date2->diff($date1);
echo "<pre>";
print_r($interval);
echo "</pre>";
echo $interval->format('%a Day and %h hours');
?>
Just use the DateTimeZone('Zone') and it should set the new date to the zone where you are.