Strtotime() doesn't work with dd/mm/YYYY format

04/03/2020 23:00:02

I really like the strtotime() function, but the user manual doesn't give a complete description of the supported date formats. strtotime('dd/mm/YYYY') doesn't work, it works only with mm/dd/YYYY format.

If I have date in dd/mm/YYYY format, how can I convert it to YYYY-mm-dd? I can do it by using explode() function, but I think there are better solutions.

Verified Answer (393 Votes)

05/23/2010 18:46:27

Here is the simplified solution:

$date = '25/05/2010';
$date = str_replace('/', '-', $date);
echo date('Y-m-d', strtotime($date));



The strtotime documentation reads:

Dates in the m/d/y or d-m-y formats are disambiguated by looking at the separator between the various components: if the separator is a slash (/), then the American m/d/y is assumed; whereas if the separator is a dash (-) or a dot (.), then the European d-m-y format is assumed.


Answer #2 (61 Votes)

05/23/2010 19:01:50

You can parse dates from a custom format (as of PHP 5.3) with DateTime::createFromFormat

$timestamp = DateTime::createFromFormat('!d/m/Y', '23/05/2010')->getTimestamp();

(Aside: The ! is used to reset non-specified values to the Unix timestamp, ie. the time will be midnight.)

If you do not want to (or cannot) use PHP 5.3, then a full list of available date/time formats which strtotime accepts is listed on the Date Formats manual page. That page more thoroughly describes the fact that m/d/Y is inferred over d/m/Y (but you can, as mentioned in the answers here, use d-m-Y, d.m.Y or d\tm\tY).

In the past, I've also resorted to the quicky str_replace mentioned in another answer, as well as self-parsing the date string into another format like

$subject   = '23/05/2010';
$formatted = vsprintf('%3$04d/%2$02d/%1$02d', sscanf($subject,'%02d/%02d/%04d'));
$timestamp = strtotime($formatted);

Answer #3 (16 Votes)

01/17/2011 06:13:36

This is a good solution to many problems:

function datetotime ($date, $format = 'YYYY-MM-DD') {

    if ($format == 'YYYY-MM-DD') list($year, $month, $day) = explode('-', $date);
    if ($format == 'YYYY/MM/DD') list($year, $month, $day) = explode('/', $date);
    if ($format == 'YYYY.MM.DD') list($year, $month, $day) = explode('.', $date);

    if ($format == 'DD-MM-YYYY') list($day, $month, $year) = explode('-', $date);
    if ($format == 'DD/MM/YYYY') list($day, $month, $year) = explode('/', $date);
    if ($format == 'DD.MM.YYYY') list($day, $month, $year) = explode('.', $date);

    if ($format == 'MM-DD-YYYY') list($month, $day, $year) = explode('-', $date);
    if ($format == 'MM/DD/YYYY') list($month, $day, $year) = explode('/', $date);
    if ($format == 'MM.DD.YYYY') list($month, $day, $year) = explode('.', $date);

    return mktime(0, 0, 0, $month, $day, $year);

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