I don't think that's a valid timestamp. From 
http://en.wikipedia.org/wiki/12-hour_clock#Confusion_at_noon_and_midnight

The 24-hour clock notation avoids all of those ambiguities by using 00:00 for 
midnight at the start of the day and 12:00 for noon. From 23:59:59 the time 
shifts (one second later) to 00:00:00, the beginning of the next day. In 
24-hour notation 24:00 can be used to refer to midnight at the end of a day.

Might be sloppy writing because that last sentence seems to contradict the 
first one. At any rate, I wouldn't expect that to be valid. What is 24:00:01 ?

Pat


On Sep 27, 2011, at 1:47 PM, Chris Cunningham wrote:

> Hi.  This behavior tricked me and I'm curious if this is inteded or
> not.  If you take a timestamp from a string, and the hour is 24:00:00,
> then it will assume that the time is at the beginning of the day, that
> is, 23+ hours before the timestamp that starts at 23:59:59.
> 
> TimeStamp fromString: '2011-09-27 24:00:00'  ->  '27 September 2011 12:00 am'
> 
> I would have  hoped that would either be the end of the day, or the
> begining of the next one.
> 
> So, is this expected behaviour?
> 
> Thanks,
> Chris
> 


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