time convert?

tjburke79

hello,

I need help, and i hope someone can show me the way to do this.

I am given a GMT time in the format like this (hour:minute), how do i convert this to a 24 hour EST format?


   $time = "02:30";
$time = explode(":", $time);
$newtime = mktime ( $time[0]+7, $time[1], 0, 0, 0, 0, 0 );
$newtime=date("H:i:s", $newtime);  
    echo "$newtime";

please help

i tried this, and it dont work

HalfaBee

you don't need to use mktime.

    $time = "02:30";
    $time = explode(":", $time);
    $newtime = sprintf( "&#37;02d:%02d" , ($time[0]+7)%24 , $time[1] );
    echo "$newtime";

Installer

You can also avoid doing so many explicit calculations and let built-in functions do the work. If your machine is on eastern time:

$gmt = '02:30';
$eastern_time = date('H:i', strtotime($gmt) + idate('Z'));
echo $eastern_time;

If the server is on some other time:

$gmt = '02:30';
date_default_timezone_set('America/New_York');
$eastern_time = date('H:i', strtotime($gmt) + idate('Z'));
date_default_timezone_set(ini_get('date.timezone'));
echo $eastern_time;

These assume that the given gm time is 24-hour format. If it's 12-hour, change "$gmt = '02:30'" to "02:30 am" or "02:30 pm" as the case may be.