How to add 11 hours to time stored as string

Question

I have a date and timestamp in HL7 format : 201402181659

That represents 2014 02 18 at 16:59

it's offset by +11:00 hours so I need to be able to add 11 hours to the date/time. Any ideas?

Convert it to a date object and then add the desired amount of hours, then convert it back to the format you like. — Tobias, Feb 25 '14 at 03:12
See [`this answer`](http://stackoverflow.com/a/21998936/) and change it to `11` also consult http://www.php.net/manual/en/datetime.add.php — Funk Forty Niner, Feb 25 '14 at 03:12

score 4 · Answer 1 · answered Feb 25 '14 at 03:11

4

You can use DateTime::createFromFormat() to parse the string and then DateTime::modify() to add 11 hours to it:

$date = DateTime::createFromFormat('YmdHis', '201402181659');
$date->modify('+11 hours');
echo $date->format('YmdHis');

You can also use DateTime::add() with DateInterval() to add the 11 hours:

$date = DateTime::createFromFormat('YmdHis', '201402181659');
$date->add(new DateInterval('PT11H'));
echo $date->format('YmdHis');

answered Feb 25 '14 at 03:11

John Conde

1

I based my comment on your answer actually John ;-) figured it would help the OP. – Funk Forty Niner Feb 25 '14 at 03:14
1

..at the same time I was adding the example using `DateTime::add()` just as you suggested :) – John Conde Feb 25 '14 at 03:17
Tried the code from John and get: Call to a member function modify() on a non-object If I comment that line out I then get: Call to a member function format() on a non-object The $date is a string. Is that the problem? – Legless Feb 26 '14 at 07:29
Try changing `YmdHis` to `YmdHi` – John Conde Feb 26 '14 at 12:36

1 Answers1