Adding date or time in datetime format to another datetime

Question

WHAT I AM DOING

I want to find the difference between 2 datetime and add it to another datetime. I am only able to get the difference in Y-m-d H:i:s format.

CODE

    $begin = new DateTime($start);
    $finish =  new DateTime($end);
    $diff = $begin->diff($finish);
    $difference = $diff->format("%Y-%M-%D %H:%I:%S");

Here I want to add $difference to another datetime say $finaldate. If its not possible is there any way of getting the difference in only minutes, then i could use $date->modify("+$difference minutes");

convert to time stamp using strtotime calculate difference (gives it in an int) add int to final time stamp convert time stamp back to y-m-d h:i:s — Dave
– Dave, Commented Jun 25, 2013 at 12:52

gries · Accepted Answer · 2013-06-25 14:09:33Z

1

*This is a method using DateTime:*

$begin = new DateTime($start);
$finish =  new DateTime($end);


$difference = $finish->format('U') - $begin->format('U');

// working version
$minutesDiff = round(($difference/60), 0);
$finalDate = new DateTime();
$finalDate->modify(sprintf('+%s minutes', $minutesDiff));

edit added missing bracket

edit2 version without ->diff() method

edited Jun 25, 2013 at 14:09

answered Jun 25, 2013 at 12:55

gries

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8 Comments

Developer Over a year ago

can you provide an answer with how to obtain difference in minutes.

gries Over a year ago

the new version should work with minutes, but it depends if you want the seconds completely removed or rounded

Avinash Over a year ago

@gries: not working. I gave 2 datetimes 2013-06-26 03:00 and 2013-06-26 04:00. it returns 0.

gries Over a year ago

@Avinash plz provide your full code, this code is working, also 03:00 vs. 04:00 is a difference of 1 hour. btw. what is "returning 0" ? which variable has the value 0?

Developer Over a year ago

@gries: I am also facing the same problem. I think its because %s gives only the seconds part of the datetime and hence $minutesDiff is returning 0

|

Fallen · Accepted Answer · 2013-06-25 12:55:28Z

0

What about:

$begin = strtotime($start);
$finish= strtotime($end);
$diff  = $finish-$begin;
$finaldate = strtotime($finaldate)+$diff;
echo date("Y-M-D h-i-s",$finaldate);

answered Jun 25, 2013 at 12:55

Fallen

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