PHP DateTime->sub() wont bubble up to days -

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if datetime $servertime e.g. 2016-02-03 00:30:00 , subtract 90 minutes this

$servertime->sub(new dateinterval("pt1h30m"));

the $servertime 2016-02-03 23:00:00. notice date remains february 3rd. while it's exepcted goes down 1 - should 2016-02-02 23:00:00. there way achieve this?

you doing wrong or modifying along way:

$servertime = datetime::createfromformat('y-m-d h:i:s', '2016-02-03 00:30:00'); print_r($servertime); $servertime->sub(new dateinterval("pt1h30m")); print_r($servertime);

works fine me: demo.


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