How many seconds in one day?

[Pna]

I would beleive that every day has 606024=86400 seconds. But what happens between 29MAR2009 and 30MAR2009? There is only 82800 seconds:

$addHoc = mktime(0, 0, 0, 2, 28, 2009);

for($i=1; $i<=31; $i++)
{
	$oldAddHoc = $addHoc;
	$addHoc = mktime(0, 0, 0, 3, $i, 2009);
	$diff=$addHoc-$oldAddHoc;
	echo $addHoc . " " . date('d/m/Y k\l\okk\e\n H.i', $addHoc) . " " . $diff . "<br/>";
}

Can somebody explain me why?

[NogDog]

I would guess that it thinks that's when the server local time will be changing from standard time to daylight savings time.

[bradgrafelman]

Pna wrote:

I would beleive that every day has 606024=86400 seconds.

Well... most days do... but not every day.. 😉

[Weedpacket]

The number of seconds in a day is the number of seconds between the start of the day and its end.