How to Subtract Minutes

Question

I want to send a reminder email.I don\'t want to use cron on Linux/Unix/BSD box or Scheduled Tasks on Windows.

I\'m trying to subtract 15 minutes from t

Answer 1

To subtract 15 minutes from the current time, you can use strtotime():

$newTime = strtotime('-15 minutes');
echo date('Y-m-d H:i:s', $newTime);

Answer 2

How about substracting the 15 minutes from time() before converting it?

$time = time() - (15 * 60);

And then use $time instead of time() in your code.

Answer 3

Try using

$min = time() - 900; //900 seconds = 15 minutes 

Answer 4

$currentTime = date('Y-m-d H:i:s');
$before15mins = strtotime('-15 minutes');
echo date('Y-m-d H:i:s', $before15mins);

Answer 5

Change the date into a timestamp (in seconds) then minus 15 minutes (in seconds) and then convert back to a date:

$date = date("Y-m-d H:i:s");
$time = strtotime($date);
$time = $time - (15 * 60);
$date = date("Y-m-d H:i:s", $time);

Answer 6

To subtract 15 minutes you can do:

date('Y-m-d H:i:s', (time() - 60 * 15));

You can replace 15 with the number of minutes you want.

In case you're looking to subtract seconds you can simply do:

date('Y-m-d H:i:s', (time() - 10));

In this way you'll subtract 10 seconds.