Time in php

[deepaksinghkushwah]

hi all, i have  a strange problem regarding time in php. I m using following code for subtract hours.....

 

<?php

$t1=strtotime('16:00:01');

$t2=strtotime('16:01:03');

$t2=date("H:i:s",$t2-$t1);

echo $t2

?>

 

 

output : 00:01:02

 

above code working absolutely fine on localhost. but when i upload it to my webserver [a live server located in DALAS, TAXES]. it show me the wrong answer. it show me 18:01:02. It shows 18 hours difference but the corrent is just 1 minute 2 second because i m subtracting time.

 

please help me to find out the correct answer.

 

Thanks and Regards

[deerly]

Try date_default_timezone_set()?

 

http://us3.php.net/date_default_timezone_set

[deepaksinghkushwah]

i used date_default_timezone_set("Asia/Kolkata") but it show me the following output

 

05:31:02

 

it should be 00:01:02 but it shows me 5 hours more difference.

 

 

[deepaksinghkushwah]

thanks for you kind support. it solve me problem. i just use date_default_timezone_set('Etc/GMT') for get GMT 00:00. and my problem solved. it shows correct answer.

[PFMaBiSmAd]

Use gmdate() instead of date()

[Yesideez]

I had a similar problem yesterday when adding up amounts of time spent working on assignments stored in a database.

 

In the end I stopped using strtotime() and wrote a function to convert the time into seconds.

  function convertTimeToSeconds($t) {
  	$hrs=intval(substr($t,0,2))*3600;  //extract HH:mm:ss
  	$min=intval(substr($t,3,2))*60;    //extract hh:MM:ss
  	$sec=intval(substr($t,6,2));       //extract hh:mm:SS
  	return ($hrs+$min+$sec);
  }

 

Then I would use it like this:

$t1=convertTimeToSeconds('16:00:01');
$t2=convertTimeToSeconds('16:01:03');
$t3=$t2-$t1;
echo date('H:i:s',$t3);