Possible Duplicates:
Number of seconds from now() to Sunday midnight
Calculates difference between two dates in PHP
Hello All,
In my project, I need to calculate the difference in seconds between two dates:
For Example :
$firstDay = "2011-05-12 18:20:20";
$secondDay = "2011-05-13 18:20:20";
Then I should get 86400 Seconds That is 24 hours.
Similarly For
$firstDay = "2011-05-13 11:59:20";
$secondDay = "2011-05-13 12:00:20";
It should return 60 Seconds.
I read lots of questions in the stackoverflow But they only deals with the difference between 2 minute fields like 11:50:01 and 12:10:57
$timeFirst = strtotime('2011-05-12 18:20:20');
$timeSecond = strtotime('2011-05-13 18:20:20');
$differenceInSeconds = $timeSecond - $timeFirst;
You will then be able to use the seconds to find minutes, hours, days, etc.
Source: Stackoverflow.com