Re: unix timestamp, strtotime, date, odd behavior?

It should provided you never work with the hour of the day. Cheers, Rob. Catherine Pinatiello wrote: > > Okay, so adding an hour to 1209600 should fix it then? And shouldn't > that work no matter what daylight savings or whatever is set to, since > it's just an hour further into the day...? > > Robert Cummings wrote: > > You logic is off by an hour... probably the very same hour we > > will lose when the clocks go forward shortly for daylight savings. > > > > Cheers, > > Rob. > > > > Catherine Pinatiello wrote: > > > >>Since unix timestamp is simply seconds, then I figured you could take > >>the number of seconds for a two week period (14 days): 1209600 and add > >>it to any particular timestamp and then you could convert it back to a > >>formatted date using the date() function... > >> > >>Only thing is.. it's exhibiting odd behavior. > >> > >>I have a script running that has this output: > >> > >>This is today: 1034889084 > >>This is Oct. 04: 1033714800 > >>This is Oct. 18: 1034924400 > >>This is a 14 day time period: 1209600 > >>This is the next timestamp: 1036134000 > >>This is two weeks from Oct. 18: October, 31, 2002 > >> > >>This script does this: > >> > >>find timestamp for now > >>find timestamp for Oct. 4 > >>find timestamp for Oct. 18 > >>Oct. 18 - Oct. 4 = 14 day time period > >>Oct. 18 + 14 day time period timestamp > >>date func. to find date on resulting timestamp > >> > >>As you can see it thinks Oct. 31 is two weeks from Oct. 18, when in > >>actuality Nov. 1st is. So I figured it was off by one day so I'd > >>compensate and tried to find 2 weeks from Oct. 19 instead... and it gave > >>me November 2nd! The correct day from Oct. 19! ;) > >> > >>So I can't find the correct 2 week date from Oct. 18!! ;) I'm afraid it > >>will fail for other dates too? Am I doing something wrong? > >> > >>here's my code: > >> > >> $today = strtotime ("now"); > >> $original = strtotime ("04 October 2002"); > >> $week = strtotime("18 October 2002"); > >> > >> echo "This is today: $today<br>"; > >> echo "This is Oct. 04: $original"; > >> echo "<br>This is Oct. 18: $week"; > >> > >> $two_week = $week - $original; > >> $next = $week + $two_week; > >> $datestamp = date("F, j, Y", $next); > >> > >> echo "<br>This is a 14 day time period: $two_week"; > >> echo "<br>This is the next timestamp: $next"; > >> echo "<br>This is two weeks from Oct. 18: $datestamp"; > >> > >>-- > >>PHP General Mailing List (http://www.php.net/) > >>To unsubscribe, visit: http://www.php.net/unsub.php > > > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php -- .-----------------. | Robert Cummings | :-----------------`----------------------------. | Webdeployer - Chief PHP and Java Programmer | :----------------------------------------------: | Mail : mailto:robert.cummings@webmotion.com | | Phone : (613) 731-4046 x.109 | :----------------------------------------------: | Website : http://www.webmotion.com | | Fax : (613) 260-9545 | `----------------------------------------------'