Two different timestamps produce identical output using date()

tiburblium

Greetings,

Using PHP 5.2.9 I've come across a case with two distinct timestamps producing the exact same date string when formatted with the php date() function. The second value is 3600 seconds apart from the first yet returns the same formatted result (01:00:00 AM), while the third value is 3599 apart from the first and returns an expected result of (01:59:59 AM)

echo date('m/d/y h:i:s A', '1257051600') . "\n"; // 11/01/09 01:00:00 AM
echo date('m/d/y h:i:s A', '1257055200') . "\n"; // 11/01/09 01:00:00 AM
echo date('m/d/y h:i:s A', '1257055199') . "\n"; // 11/01/09 01:59:59 AM

Any thoughts on this? I found this by chance but i'm assuming that it's not an isolated case, I have searched for any outstanding bugs with date() in PHP 5.2.9 but have not found anything yet

Thanks for any ideas!

dagon

my results from your code (PHP/5.2.5):

11/01/09 06:00:00 PM
11/01/09 07:00:00 PM
11/01/09 06:59:59 PM

djjjozsi

i have Europe/Budapest (GMT +2):

11/01/09 06:00:00 AM
11/01/09 07:00:00 AM
11/01/09 06:59:59 AM

Weedpacket

Include 'P' at the end of the format string; see if that has anything interesting to say.

blackhorse

11/1/09 is the Daylight Saving Time End date.

Time zone from daylight saving to standard. It is supposed to have these two timestamp return same time if you are in the area that use the daylight saving time. You turn 1 hour back. How come you accidently run into these exact two time points? 🙂

tiburblium

Thanks for the feedback folks, adding option I to date I was able to see that the first existed in daylight savings while the second 1am was not

Whew 😃