In the time part of the date time field it always converts the time to AM no matter what is put in there. I notice it used strtotime so I've tried all sorts of creative entry to get a PM time but it simply doesn't work.

21:15 -> save -> 9:15:00 AM

9:15:00 PM -> save -> 9:15:00 AM

and plenty more.

This is in a dataobject managed by model admin, silverstripe 3.1 but we've tried 3, 3.0.5 and 3.1 in this process with the same results.

Any ideas, going a bit loopy here being stuck on such a simple seeming issue!

Cheers,

I can reproduce this issue.

As a workaround, you can edit the time format to a 24h format.

$datetime = new DatetimeField('Datetime');
$datetime->timefield->setConfig('timeformat', 'H:mm');
// or
$time = new TimeField('Time');
$time->setConfig('timeformat', 'H:mm');

Edit:
Maybe related to #1713.

Pull request in https://github.com/silverstripe/silverstripe-framework/pull/2164

Hopefully this fixes the issue.

The problem was due to the TimeField mistakenly assuming times with am/pm were in ISO format (24 hour format) and converting them using this method. Sadly, this dropped the am/pm.

The fix mentioned above has been merged into the 3.1 branch and so will be included with 3.1.0-rc1