Get time from a date/time string

Question

I have a date value stored in a variable. I need to extract the time part of the value in to a separate variable and then add/subtract time from it.

The date variable is set with date('YmdHis'), giving (for example) 20110805124000 for August 5th 2011, 12:40:00

From the value 20110805124000 (which is stored in the variable $fulltime), I need to store the time only in the format 12:40 (so ignoring the year, month, day and seconds and adding the colon between the hour and minute) in a variable called $shorttime. I then need to add a number of hours to that time (so for example +3 hours would change the value in the $shorttime variable to 15:40). The number of hours I need to add is stored in a variable called $addtime, and this value could be a negative number.

Is this easily doable? Could anyone help?

Thanks :)

Answer 1

$time = '2013-01-22 10:45:45';  echo $time = date("H:i:s",strtotime($time)); 

It will give the time 10:45:45 from datetime.

Answer 2

<?PHP  $addhours = 3;  $date = DateTime::createFromFormat('YmdHis', '20110805124000'); $shorttime = $date->format("H:i"); $newdate = $date->add(DateInterval::createFromDateString($addhours . "hours")); $newtime = $newdate->format("H:i");   echo $shorttime . "<br />"; echo $newtime . "<br />"; ?> 

for your reference:

http://www.php.net/manual/en/datetime.createfromformat.php

http://www.php.net/manual/en/dateinterval.createfromdatestring.php