UNIXTIMESTAMP - Is it always 10 Digit Long

[jimmy_B]

Hi,

mktime returns date in UNIXTIMESTAMP format & it's 10 digit long.


I just want to know that Is UNIXTIMESTAMP is always 10 digit long or it can be less than 10 digits or more than digits in other cases.

Thanks in advance for your consideration :)

Jimmy

[hvle]

if your PHP running on windows, timestamp ranged from 0 to 2147483648

[corbin]

Can I ask why the timestamp maxes at Jan 18, 2038 9:14:07PM?

(PS yes, I did actually check it lol)

[brendandonhue]

You'll run into an integer overflow at the point.

[corbin]

Ooooohhhh, that finally explains something about a game I play... Lol

Thanks for the answer :p

[alpine]

Yes it will be until january 18, 2038
But then i guess the problem might be another... http://www.unixtimestamp.com

[hvle]

This is strange.

max 32 bits int: 4294967296

max/2 = 2147483648

echo date('j-m-Y', 4294967295); // got error

echo date('j-m-Y', 2147483645);  // 19-01-2038

for any negative $n:
echo date('j-m-Y', $n); // got error
echo date('j-m-Y', -680646);  // error

It look as the unix time went from 0 to 2147483647 which is only half of the range of 32 bits int, with Windows.
I don't understand this.  Perhap anyone can explain?

[Daniel0]

It can be longer or shorter depending on how many seconds it is since the UNIX epoch.

[Azu]

[quote author=hvle link=topic=121217.msg498110#msg498110 date=1168086740]
This is strange.

max 32 bits int: 4294967296

max/2 = 2147483648

echo date('j-m-Y', 4294967295); // got error

echo date('j-m-Y', 2147483645);  // 19-01-2038

for any negative $n:
echo date('j-m-Y', $n); // got error
echo date('j-m-Y', -680646);  // error

It look as the unix time went from 0 to 2147483647 which is only half of the range of 32 bits int, with Windows.
I don't understand this.  Perhap anyone can explain?
[/quote]
Maybe it's because it is a signed int? But then why are negative numbers giving an error..?  :-\

[hvle]

has anybody tried it?
I'm using Windows XP.

[code]<?php

echo date('j-m-Y', -680646);
?>
[/code]

error:
PHP Warning:  date(): Windows does not support dates prior to midnight (00:00:00), January 1, 1970 in E:\client\vnh\_debug_tmp.php on line 3


is my windows screwed up or what?