PHP: Add Minutes To Time

[DjmUK]

This is bugging me now. I can add, say, 20 minutes to the current time using:

<?
$mytime = ($start = date("H:i:s", strtotime( "$start + 20 mins")));
echo $mytime;
}
?>

But...how would one add 20 minutes to a specified time in text format:

<?
FROM $mytime = "18:00:00";
TO $mynewtime = "18:20:00";
?>

Thanks in advance.

[soil]

isnt it just something like...

$var = date("H:is:") + 20000;

:unsure:

edit: nvm that doesnt work :p, ill go search about for u.

edit again: couldnt find anything but u might need to do something with 'strtotime' :unsure:

Edited February 3, 2006 by soil

[SkyyPunk Veteran]

use mktime function in php..i cant remember the order of the params, but it wouldbe something like

$timeshift = mktime(yr,mo,day,hr,min+20,seconds);

$val = date("H:i:s",$timeshift);

codes not exactly right, you would have to stick in the yr, mo, etc...but you can do that by just like date('m') for the month (or whateever the month code is) or

[DjmUK]

I modified mktime() and it works now :D

Thanks guys.

[Adrian]

<?php
echo date("H:i:s", mktime()+(20*60));
?>

[dimitris]

<?php
echo date("H:i:s", mktime()+(20*60));
?>

and what user really needs (and didn't post) is this:

$date = date("Y-m-d");//or equivalent
$dateParts = explode("-", $date);
$time = date("H:i:s");//or equivalent
$timeParts = explode(":", $time);
$duration = 20;//min

echo date("H:i:s", mktime($timeParts[0], $timeParts[1], $timeParts[2], $dateParts[1], $dateParts[2], $dateParts[0])+($duration*60));

[cold12]

Just in case you want a solution that doesn't suck:

$From = "18:00:00";
$Minutes = 20;

$To = date("H:i:s", strtotime($From)+($Minutes*60));

[Hot]

This thread follows a trend that bugs me. Every solution proposed so far calculates minutes * seconds. Unless the number of minutes you are adding is variable, there is no reason to have PHP do an extra calculation every time the script runs. If you must remind yourself how you go the value, leave a comment or something.

$increment = 1200; //20 min * 60 sec